I think the real problem is when you are using items to improve a skill. A lot of these "omg sneak is OP" threads are with people with 100 sneak and all sneak gear. Probably the best way to balance this is to have an effective skill cap, so that no amount of gear can make you sneak better than 100 raw sneak.
this is the solution i posted in the other thread.
and i get the point of. you are the dovakhin of course you are op, the thing is that nobody in the city realized that he/she was naked , and that is not great skill, that is awful npc IA. The same with sneaking you are in front of them but they cant see you just because you are crouching, not matter how powerful you are its very unrealistic, there should be at least bonus cap, and if you wanna do the super unrealistic thing like undressing a entire city of blind people just make a mod
and for those who dont know, single player games are balanced or unbalanced too , New vegas got several balance patches