I've had good and bad Kingston and OCZ, nothing but good from G.Skill. I'll stay with G.Skill until they do something foolish and make me change; I'm not even really enticed by the other stuff (except when they put LEDs on the top... lol)
G Skill is hilarious, for some of their stuff on Newegg, they respond to EVERYTHING, even people saying how great it is. I love when they randomly drop tips on overclocking and shit on a 5 star review and make sure to make known where they can be found JUST IN CASE. It's great.