John, because while Peter isn't really that bad, it sounds a bit prissier and more buttoned up. Besides, Johnny or Jack sound better as nns than Pete, which always makes me think of a kind of buffoony cowboy.
"It's one thing to be open-minded and quite another to be so open-minded your brains fall out."--Dear Abby
"Let other people push you around, and you deserve whatever bad things happen after that."--Lauren Bacall