The faster the better, of coarse. For normal clock, that would be the 933. For overclocking, it would be "none of the above". The 700 will go to 933 for an $hundred or so less than the original 933, perform the same at that speed, and both will do 980 at 140FSB. They both have a 7x multiplier. While the 700 is at 100FSB and can be clocked to 133 and higher, the 933 begins life at 133.
Suicide is painless...........