If you don't like sneaking, then maybe you shouldn't sneak?
Indeed. Now granted, maybe you do like stealth, you just don't like how its implemented in Oblivion. But if you just don't like sneaking, then you probably should keep your hand away from the sneak key, and not bother raising sneak. The point of having a skill system in the game and classes and such is to allow you to play the kind of character you want to play, and be good at it.
Although, I kind of like playing stealth characters myself, sneaking can be fun, and I prefer the questlines for the two stealth oriented factions in Oblivion to those of the Mages or Fighters Guild.