Okay I'm just gonna be honest with you, get yourself a 600. Any of the ones you listed are excellent bikes. But just remember to take it easy because modern day 600 pack some serious punch, expecially to a beginner. Why am I recomending a 600? Well because I was once where you are. Everyone told me to start on a 250 but I didn't wanna go through the hassle of buying/insuring/registering a bike that I knew that I'd get tired of in a month. I started on an old 99 cbr 600 f4 and I'm absolutely confident that it was the right decision. 600s are friendly enough to learn on (when you do it in a responsible manner) yet still have enough power to keep you from getting bored with it. Don't get discouraged by what some of the guys are telling you, their intentions are good but nobody knows you better than you, so just do what you know is right for your situation. Good luck.
btw, I don't know why everybody always advices novices to get 250s when the majority of us started on 600s. :dunno
btw, I don't know why everybody always advices novices to get 250s when the majority of us started on 600s. :dunno