If you're looking for something is comfortable. Get a zx6.. or a zx10. You can find zx10's pretty cheap now. And they are beasts! I had to lower mine just to help with keeping the front wheel down with launching. If I had to pick between R1 or GSX I would go GSX. It's more comfortable to me. R1 seemed like a pissed off bee you're riding. CBR is also pretty comfortable.

But I still push for the ZX10R. It's more bike than you'll ever need. And you're positioned so well that your legs can easily squeeze the tank to keep your hands from going to sleep lol