I don't mind the finishers of the NXT guys, for the most part.
Michael Tarver had The Kill Shot, but they got rid of that because knocking people out is Big Show's thing. Whatever. I like his Tarver's Nightmare powerslam, too. I don't think I've even seen anyone do it quite like him. It's got flow to it. I say keep it. He just needs something else.
Darren Young's Partylights is okay. There is something a little sloppy about it, though. I do think he could use a new one. Heath Slater uses something that is pretty much the Zigzag. I'm surprised neither he nor Ziggler have had to change their move yet, but I say keep it that way. One day they can have a feud about who jumps and pulls the opponent down with them better.

For some reason, though, I could see an Impaler DDT really suiting Slater.
Skip Sheffield's Murder by Lariat is sick, and his Over the Shoulder Boulder Holder is even sicker. He needs no other finish. Wade Barrett's Wasteland started off as something I didn't like, but it's growing on me, I guess. Justin Gabriel's 450 Splash is obviously fine, but I think he could supliment it with something else. Maybe even a submission move?
On NXT 2, Kaval's Warrior's Way is fucking amazing. Riley's TKO is more than fine. Husky Harris uses the senton about as well as it can be used. Percy Watson often sets up his "Oh Yeah!" move with his Floatover DDT, so that's not too much worry. Something a bit more substantial would be appreciated. The McGillicutter is a sweet finish, and pretty much a faster version of The Miz's Mizard of Oz. McGillicutty also has the Perfect Plex he can bust out, I am sure.