First off, it'd be pretty rare seeing a girl exactly my height. Most girls in the 6'3" or so range tend to be athletes, and likewise they don't tend to be chubby.
That being said, chubby is a relative term. What you considered chubby may not be what I consider chubby and such. Nevertheless, a bit of chub isn't going to be a dealbreaker. There is a range, however. If I can't find them physically attractive (even if they have a suitable personality), I wouldn't date them. Dating requires a bit of both personality and physical attraction.