Not to nitpick, but I just wanted to comment on a couple of these:
Voadam said:
1 Ability score tables where only exceptional scores matter (exacerbated for exceptional strength).
I always found that ability checks (rolling equal to or under strength, for example) were fairly common in gameplay. In that case, an 11 certainly is better than a 10!
3 Different xp charts for different classes.
4 Lack of balance between classes.
There were different xp charts BECAUSE the classes weren't perfectly balanced. Classes that were by level weaker than another class advanced faster - a thief is generally at least 1 level higher than an m-u with the same amount of xp.
13 Bonus xp for high ability scores.
Makes sense, though - wouldn't a thief who's extra nimble, or an exceptionally intelligent m-u be more likely to be a quicker study than his clumsier/dumber counterpart?
17 Obvious spell info hidden in the DMG.
Most spell info is in the PHB - the info in the DMG is clarification and/or adjudication advice for difficult/abusable spells. Also, remember that the DMG came out a year after the PHB - some of the info could be considered errata.
Okay, that's all I've got. I know this thread is specifically about what you don't like about 1e - I just couldn't resist the urge to defend the ol' girl on a couple of points!
That being said, the rules for surprise, psionics, and the DMG version of unarmed combat sucked really, REALLY bad.