I wouldn't say He's a Pro-AMD if he inclues a AMD CPU, because at OCWORKBEncH, there's some one in the forum said Anand is kinda INtelish.... so....
Oh, regarding to P4, I think the best selling part is its HIGH CLOCK rate, that's all, and some new Instructions for improving the peformance in certain tasks... nothing really special about. Besides, varies benchmarks indicate Athlon is faster than P4 even when the clock is slower, however, those aren't official tested.. so, just a speculations....
If this is the case, P4 will be like a HOT Blonde but air head, and Athlon will be a okay Girl but got a lots of stuff inside...