I like one syllable first names if your last name is long and more if your last name is short - so, while I like Jonathon (warning, you'll have to fight for it not to become "Jon") and your last name is Virverdledunk (yep, my best friend's last name) then its too much of a mouthful and Ian would be better. Hmmm, I like Jonathon Ryan (Smith?)
However, I'm voting for Evan Patrick - although I think Ethan Patrick is even nicer, but I suppose I should let you stick to your own choices