SasuNaru is good in my opinion, it's in my top five, though i like to think of Sasuke as a pervert and Naruto tortures him by with holding sex.
NejiNaru...it's ok, not the best, Neji is to much of a stuck up p***k in my opinion, besides, Hiashi might try and get Neji to marry one of his cousins cause he is so strong.
GaaNaru, my second favorite pairing, it's HOT, and I always pictured Naruto being seme at first then Gaara kind of taking over, like in this FF
http://www.mediaminer.org/fanfic/view_ch.php?cid=445760&submit=View+Chapter&id=129732......But in my opinion the best pairing is.............ITANARU........enough said.