get what you are comfortable on for sure, I started with a yfz600, but grew up riding 2 stroke dirt bikes forever, then got a kaw 636, now got a 07 zx10. Just wear your gear, 2months ago I was coming home from work and hit a deer doin 40mph, luckily that day I had my jacket on (which I never wear). Saved alot of skin, walked away with only large large knot on my leg and stiff neck and back.
