I rode my 07 Tiger and my buddies 06 Sprint back to back yesterday. I'm a pretty big guy, 6'2" the Tiger is more comfortable and smoother. It also it's a bit easier to flick. I preferred the braking on the sprint, but the Sprint is set up, I haven't adjusted the suspension on my tiger at all yet. Still too soft and too much dive stock.
One thing I do notice on the tiger is I have a lot more bugs on my helmet than with my speedy with the fly screen. A bit disappointing, but the only issue I've had.
Oh yeah, with my high points on, I have trouble getting my boot under the shifter on the sprint. I had to adjust the shifter on my tiger, but the sprint doesn't look quite as adjustable. If you've got big feet, you might think about it.