- Getting a ruleset that perfectly matches the tone, feel and setting that I want to hit.
- Getting a ruleset that is simple to present to my players.
I'm finding that the two are in competition to some extent. In order to meet goal #1, I really should do a serious custom job on the rules; replace lots of classes, replace races, replace the magic system, etc. Of course, I've already got a fairly kludged together galimauphry of rules as it is, so doing that really starts to strain against goal #2. Just saying, "D&D 3.5, folks, with E6, and the action point and skill system changes and a different play paradigm" is much easier. But, of course, then I start bumping into problems where the feel and tone is wrong. Do I really want clerics turning undead? I know I've kept spells down to 3rd level tops with the E6 tophat, but do I really want 3rd level spells running around the setting, easy as pie for anyone to access? In a sword & sorcery dark fantasy hybrid game, is magic really something that you want characters to have ready access to in the first place, without paying a cost for it?
Honestly; I'm not sure. I'm on the fence about the issue.
Feel free to comment and convince me one way or another.