Ability scores generation method? 5d6 drop the lowest two, assort as desired. Reroll anything under 13 we have HIGH powered games.
How are death and dying handled? Death at -10 HP, Dying at -1 lose 1HP every round unless stablized, At 0 one action then Dying. Pretty much the basics.
What about raising the dead?Per RAW, typically. As a DM I haven't bumped into something I couldn't think of an RP way out of, yet.
How are replacement PCs handled? Haven't bumped into the problem yet, but in my campaign there are a 3 who can't just be replaced since they are carrying shards of a gods' soul inside their own souls.
Initiative: individual, group, or something else? Individual for the PCs, everytime. Sometimes if I have too many enemies I group them up. It is rolled at the beginning of combat or whatever I make them roll it for.
Are there critical hits and fumbles? How do they work?Yes and yes. Critical Threat then confirm as typical. Fumble by rolling a 1 then we roll the "Die of Destiny" (d100) and the DM gauges what happens based on the roll 1 being best for player 100 being worst. Typically 1 means you miss, 100 means tpk, and 42 means something awesome and outlandish happens for the player.
Do I get any benefits for wearing a helmet? ...the bats can't get you? It is included with most armor sets. If something specifically attacked your HEAD like...a Dark Mantle I might give a bonus. Might.
Can I hurt my friends if I fire into melee or do something similarly silly?Yes, otherwise precise shot would be pointless. We have had PC deaths caused by other party members.
Will we need to run from some encounters, or will we be able to kill everything? NEED to? No. Might want to? Yes. I try to gauge the power of fights accurately, but some times I get lucky and some times I kill two party members and take 2 more to negatives with a handful of monks. (actual example)
Level-draining monsters: yes or no?As is appropriate, there are ways to fix it and it is in the game. Negative levels aren't that scary.
Are there going to be cases where a failed save results in PC death?Yes. I try not to use Save or Die mechanics, but sometimes a Flesh to Stone is going to happen if you piss off the wrong Wizard.
How strictly are encumbrance & resources tracked?In the beginning I tracked weight pretty strictly, but now I am more relaxed, it is pretty much honor system at this point. However ammo and food and amounts of potions I will remember.
What's required when my PC gains a level? Training? Do I get new spells automatically? Can it happen in the middle of an adventure, or do I have to wait for down time? Leveling happens at the end of a session in the middle of anything that happens, unless we end in combat. You do not gain your used spells back, but you gain your new spells if you are a spontaneous caster. I handle it this way, because the best practice is being what you are and doing it for real, for PrCs you are required to try to fill the role before you become it, so when you level it is a sudden "Eureka moment" and you finally understand everything.
What do I get experience for? Anything and everything. Fights I gift experience based on difficulty x level. Average is 75 x level, really hard is 200 x level.
How are traps located? Description, dice rolling, or some combination? Dice rolling usually, I do like to warn them before hand if they make a reflexive perception check, but knowing a trap is there doesn't mean you can avoid it.
Are retainers encouraged and how does morale work? If retainers are what I think they are, we don't really use them. Morale is a non-issue.
How do I identify magic items?Identify or Detect Magic.
Can I buy magic items? Oh, come on: how about just potions? Certain places sell magic items, not every item and not a lot. The basics are usually sold where they are available though. Edit: EVERY major city has an apothecary.
Can I create magic items? When and how? Yes, as per RAW.
What about splitting the party? As a DM I feel like it is my job to divide and conquer, but it is USUALLY up to them.