You totally didn't even put sensitivities 1,2,3, or 4 into the equation. There is not a specific sensitivity that is better than all. For exmaple, in COD4, I would use sensitivity 2 for Pipeline No RPG Bounce and 3 for Crash bounce.
In MW3 I use 3 or 4 and I strafe really well. Like the guy earlier in the posts said, it comes down to how much experience you have. Console or PC strafe, it depends on You.