Dude, wake the ***** up. The more power you have, the more skill it takes to reign it in, and most people aren't worthy of the gsx-r 1000. But go and take a look at AMA times between the 1000 pros and the 600 pros. Ouch!
I'd also like to point you to the Master Bike comparo recently done... GSX-R 1000 takes it all, and convincingly.
Speaking of the 636 beating a 750. Oooh-wee... you mean one highly modified bike managed to beat another highly modified bike with a different rider... once? And you figure that means that the 636 was faster? Give me a break man. Obviously you haven't been around racing very long...