Anyone can go "fast" on a 240 horsepower bike that weighs 80 lbs less than your Gixxer 750...but can you control the bike and handle it skillfully? That's a different story. There's a difference between being fast and being skilled. If you're fast you can probably go speedily in a straight line. If you're a skilled rider more than likely you will be fast all around.
I personally like the YZR-M1. Personally though I don't want to see a bunch of squids on 200+ horsepower rockets. They're dangerous enough without that much power:weight ratio!