wow
Ooo, this old nugget. After decades of playing D&D with the same guys, we have had one player who is exactly as you describe. But as I said...decades! We are all old friends, and truth is, I have had to walk softly around this issue.
I have brought up before with him the effect this has when one character completely outshines his comrades. Its not only an issue of encounter balancing, its an issue of the other players enjoyment as their players get marginalized. Dont underestimate the effect this can have on the group.
Our campaign ended recently, after over two years of play! I found a rather novel solution. I personally aided everyone except the powerplayer in putting together the best tweaked characters they could. So rather than pulling the power player down, I lifted everyone else up (within the theme they wanted their characters to be). Then, after everyone the character they wanted at the best possible config they could have, we had a level playing field
I had to make encounters harder than I would have otherwise, but it worked.
Bob, I thought you were my old friend from high school until I read the last line there. We started 4e when it came out as well for two years, through heroic tier (it took forever, it seemed. and we played every week), and now I play Pathfinder after our campaign sort of dissolved in a huff. So I can tell you from the other side of that equation. If the other players are bad at math or abstract reasoning or even missing basic understanding of elementary statistics, that is TOO BAD for them. This is 4e, that's the way it works. Don't like it? Play a different system. Make the encounters scaled tougher so the laggards will have to re-invest. Play some NPCs of the same classes as the players who can teach them how to use their powers. There are creative/in game ways to teach people how to do their classes' job, and why this weapon and that feat are better/worse choices for their concept. Being weak is a good story arc : to end up in the morgue. The graveyards are FILLED with the corpses of middling swordsmen.
First off, I invited a few players from this site to join our group so that we would have 6 players rain or shine, and not be beholden to the whims of one or two guys routinely not being able to show up at the last minute and forcing us all to cancel. One of those players currently still plays with them, and yeah I'm a little bitter about that, but anyway...point is, I am a bit of an optimizer but I also played DM and am a (somewhat) mature adult, so I can agreed with the DM when he says so and so is OP and tone it down...
HOWEVER, that does not mean you should throw people out of your game. It will have concequences that you should be willing / ready to deal with. Giving brand new players / random people a bigger role or vote than your friend of 20 years WILL have negative consequences to your friendship. When things end badly, for whatever reason, you can pass a few years, if ever, to get over it and even want to hang out with those people, let alone play D&D with them.
I'd also beware DMs asking for advice on this forum and then ignoring it in full view of their players reading the same forum.
My DM asked y'all on this very forum what to do, since I was playing a str-paladin and was VERY bored with it, by 5th level. I wanted to switch up the character to a ranger which was my right, but for continuity's sake, he wanted to know what was a good way to boost it up a notch. This was before DP (hehe) I believe. Know what this forum suggested?
Which he showed me: Play a hybrid paladin/ranger.
I said, great! But had to wait until 6th level for it to work and finally, after much annoying finagling and idiotic insults from around the table about "power-gamer", I was allowed to play this woefully unoptimal hybrid. This is when the hybrid paladin mark was an immediate reaction, gimping several of the ranger powers I had selected (even dailies). Then, after another year of trying it out, I just thought, this is so annoying, I never use my paladin powers anyway, I'm stuck in Scale anyway, might as well play a straight up ranger.
So after an unrelated break in game play, I re-subbed to DP Insider to make a legal straight up ranger with standard point buy, with nothing special in terms of items (I don't even like frost cheese or such stuff). I sent him the character sheet a week before playing to look it over, and three of our friends also did, and they all agreed it was fine, then the DAY of the game, 5 minutes before I was about to walk over to his place, he calls me and tells me I need to tone down my PHB 1 ranger because I put an 18 in str. I was like, no, this is ridiculous. I painstakingly spent hours and hours and he does this to me again. Making your players feel like





for knowing how to build a proper striker is...well, annoying.
I sat by when the wizard and the rogue had better AC than me, and my marks were ridiculous, and there are no iron armbands and the loot is badly distributed, but I cannot and will not abide by DMs who do not obey the rules as they are stated on page 1 of PHB 1. If the players have to deal with getting hit by the errata pignata, DMs need to accept that rangers are the toughest, baddest single class to play, and come within one point of AC usually to a defender, yet do so much more damage it's not even funny. That's 4e. Don't like rangers? Fine, I'll play in a game with a DM who likes them. But at that point why even play 4e, and don't invite an old friend back into your game, knowing what class he'll play, and at the 11th hour say no.
When players feel abuse or repeated frustration, they can find other groups and other systems to play. When they start feeling abused or treated unfairly, particularly versus other gamers who are new friends and won't be there for your wedding or funerals and gone through countless life events together, well yeah, being excluded from D&D is potentially a deal-breaker, on a permanent basis. We talk, but I'm not inclined to hang out with him and especially not with the others, who I used to cook for and throw the most lavish parties like the bon-vivant that I am. The thanks I get is reading their statuses on facebook saying how much fun they are having. Well, you know what? Good bye then.
Lesseon learned : don't exclude your friends if you want to maintain your friends. D&D players you meet are a dime a dozen, there are fresh batches being made all the time. How many of them will you have at your wedding, or at your funeral? Most will come and go, and you need to valorize your long-term friends or you will risk losing them.
ps, Yes, start at level 1 campaign. No offense, but you are a n00b DM and this forum is giving you good advice. When you go up through the levels you can decide what items the players find / can buy, and don't have to deal with such idiotic things. Hey, this is not a videogame! If you want one, play Wow. Get rid of those shards and eberron feats and ooodles of magic items. Even if they start at Paragon I'd give them one or two items they want, and the rest I'd roll for them or give them generic +3s.
You are the DM, first lesson is start acting like one. A FAIR one, but a DM nonetheless. The idea of players insisting on having a particular set of the best magic items is against the spirit of the game. But characters selecting Staff Expertise are not abusing anything, sure it's a very powerful feat that might get nerfed, but you can kill the wizard if he gets up in the enemies face too much. First rule of DMing, a wizard in melee?
Ooooh, kill him. Hard. 1st lesson on the 1st day at Monster Academy.