I have a 30-something cousin named
Wesley. And I've met a 60-something man named
Wesley. Both go by
Wes. So, I'd say it's not too common at all.
I pronounce
Wesley and
Westley a little differenly. Basically,
Westley makes me feel silly when
Isay it because I kind of over-enunciate the t. Weird. And a little pretentious.
I don't particularly like either name. But West is really nice! I'd consider
Weston nickname West. Eh? eh?