nVidia
Really it shouldn't matter they're both good, ive only stuck to nvida cause i started off with these cards. First one was a TNT with 32mb ram then when the geforce 1 came out nvidia practically put the 3dfx cards out of bussiness. I also owned a 3dfx voodoo 2 they were good cards, it use to scream with power when playing aliens v predator 1. Yet they made the mistake of only having 16bit. nVidia brought out the 32bit display option.