I'd say get a Kawasaki Ninja 600 or a Suzuki GSX-R 600. They are powerful bikes and don't take a huge person to operate. I really liked my Suzuki GSX 600 because of the power behind it. I've heard a lot about buell's not packing enough power but did you know...
Buell was cancelled? Yep. Look up buell cancelled on Google, it's a fact now. Crazy. I paid $1,000 for my Suzuki GSX 600 and I loved it. Going to go towards a Suzuki GSXR 600 this coming spring.
But if you stuck between those 2, definitely go for the Kawasaki Ninja 500, they are nice bikes and have great ratings
Hope I helped!
Buell was cancelled? Yep. Look up buell cancelled on Google, it's a fact now. Crazy. I paid $1,000 for my Suzuki GSX 600 and I loved it. Going to go towards a Suzuki GSXR 600 this coming spring.
But if you stuck between those 2, definitely go for the Kawasaki Ninja 500, they are nice bikes and have great ratings

Hope I helped!