how can you say something like this then why don't you take a signle cylinder xt 660 compe=are it with the r6 (598cc) an then say that WOW even though r6 has smaller engine is so much powerful. obviously you know nothing about engineering. whatever those 3 bikes are the best and MCN tester says that you choose based on you criteria what you wanna drive. You see the only truth is that IF DON'T KNOW HOW TO TURN IT DOESN'T MATTER IF IT'S 1000cc OR IF IT'S 400cc. FIRST LEARN HOW TO RIDE