Chinese Stealth Armor- The armor made your character broken. Although I got a feeling it will appear in new vegas as it was suppose to be in VB
Grim Reaper Spirits- I love this perk but I don't think it should be transfer over to New Vegas. The perk made the game too easy.
Almost Perfect Perk- Same reason as above
Enclave- Don't get me wrong I wouldn't mind fighing the Enclave but they don't need to transfer over to New Vegas, heck they weren't even in Fallout 1
I heard so much about the Chinese Stealth Armor, so when I got it I never used it.
EDIT: OMG I saw a youtube video, it's basically an unlimited expansion upon a normal Stealth-BOY.
Does it ever run out?
If not, dear god that's broken and I will stay away from it in New Vegas.