The GeForce line has a GeForce 4 MX 440 PCI card, which is the best pci card i've seen. As for pci vs agp, it's the data transfer rate, the ports are different, typically pci is slower. But with the pci geforce 4 mx 440, it runs just like AGP, very nice indeed. As for Geforce vs Radeon, it's all just a matter of opinion and preference, kinda like AMD and Pentium. In some aspects, one will do better than the other, usually in speed, but Performance, stability, and heat dissapation is a major factor in both of these, therefor, if you have the right kind of system to make your card work good, then it's just whatever you think is better. There is no specific proof that one is better than the other. In my mind, it's just opinion.