You have reasonable chance to die on any motorcycle... so...
A) Get the motorcycle that fits your body type, not one that is too big (size/weight)
B) After Step A, get the bike you want, it will make you happy, regardless of CCs
C) Don't be stupid.
For $1500-2000 just get what you like the best. That price range is going to have some older bikes which IMO the selection just comes to personal choice.