I actually have no experience with the above mentioned brands....i use palit....A friend of mine do use zotac and as far as his opinion goes its very good and has a good pricing....I have seen guys i these forums who say XFX cards are generally expensive but have good build.......otherwise performance wise everything is same.....My word of advice is when ur buyin any cards specifically GTX ask for the newly manufactured ones.....since the early cycle of those chips are defective....though u can get a replacement in those why go through the trouble.....My 295 got replaced because of it.....