P4 vs. AthlonXP #2

[H&h]

I still don't know which is better for gaming. Athlon XP 2800+ Barton or

CPU Intel Pentium 4 2.4 GHz 512KB Cache, 478-pin BUS 800 MHz BOX

or

CPU Intel Pentium 4 2.6 GHz 512KB Cache, 478-pin BUS 800 MHz BOX

or

CPU Intel Pentium 4 2.4 GHz 512KB Cache, 478-pin BUS 533 MHz BOX

or

CPU Intel Pentium 4 2.66 GHz 512KB Cache, 478-pin BUS 533 MHz BOX

For gaming! Help!