Sorry I didn't reply sooner. Just started a new job yesterday, and I've been busy with other life things, too.
I was the same. I came to 4E late because I had 3.xE working just the way I wanted it to work... or so I thought.
I kept house ruling and home brewing 3.5 more and more until I ended up with my RPG, so I know a similar feeling.
I had to stat up a level 15 anti-paladin in 3.5E for the game I was running so I started work on it. Of course, there is no anti-paladin class in 3.5E (I mean, published by WotC) so I started with a paladin and then went blackguard. I realised that the silly prequisite for blackguard - ranks in Hide - made no sense for blackguards in general or for this character so I spent some time creating my own version of the blackguard PrC. Then some more tinkering to make sure it was close to CR 15. Ultimately, I spent a good 4-5 hours creating that NPC and to this day I don't know if it would have lasted more than 5 minutes of play time.
That's a common enough story that I believe it. Personally, I didn't prep my 3.5 games, I just winged everything (though I had a pretty good understanding and memory of the core books). So, my prep in 4e is drastically higher, comparatively.
I decided to have a look at 4E and see what such a character might look like. Grabbing PDFs of the DMG and PHB within an hour I had a stat block for a level 20 anti-paladin which still doesn't look too bad even several years later.
It is very easy to understand and adapt to. I agree with [MENTION=22779]Hussar[/MENTION] that 4e is very close to 3.X mechanically. The stuff you learn you may need to adapt to, but most of the basics you learned in 3.X are coming into play with 4e.
So, I went from 4-5 hours in a game I had tonnes of experience with to just under an hour in a game where I had barely glanced at the PDFs. Yeah, I was hooked... but after all the things I had said or thought about it I decided to go RAW for a while.
Yep, I think it's the least I can do for it. My natural impulse is to wing everything, as I did with 3.5, eventually, but I don't know the 4e books well enough yet. I want to give 4e a fair shot, and try to play to its strengths, to see how it plays under those circumstances. That, coupled with my other gaming needs being met in my regular group, means I'm quite enjoying 4e so far.
Yeah, it doesn't break the game but it helps make up for the fact that there are four characters rather than five. Coupled with slightly better equipment and quite a few (slightly overpowered) alternative rewards, I can still create encounters for a five character party and know they can handle them. Also, I love how they have more than one character with decent skills (and their defences don't suck either).
Yeah, maybe skill challenges also feel slightly harder because there are only four characters, but I don't think that's it (or, at least not most of it). Also, I've found prepping combat for four players seemingly easy in 4e thus far (if I follow the XP guidelines).
But, I can see how the skills / defense boosts might help, too, in certain ways; the dwarven Fighter (Knight) in my group had low Reflex and Will saves (even with a shield), and just took Improved Defenses at level 4. That, coupled with his fairly poor skill selection (there aren't many skills based on Strength / Constitution, just like in 3.5), means that he's a low skill / low defense character (though his AC is simply amazing).
Anyways, once I play through this campaign, I might try experimenting a bit more. I don't feel the urge to do so, yet, though. And, in the interest of giving 4e a fair shot, I think I'll hold off on changing too much of it for a while, still. Thanks again for the constructive feedback. I'm so impressed with this thread and my first thread. Good stuff
