I like powercolor, purely as they were cheapest for my 4 series cards... but as said, personal preference, XFX have particularly awesome RMA, Sapphire do the VaporX coolers, ASUS has the overvolt thing, depends what you want it to do, if you are sticking it on water, then the ASUS volt tweak will rock, and Sapphires VaporX will be utterly pointless etc