Originally Posted by Retro4Life
Could be. McFarlane likes to modernize iconic characters; obviously Peter is Ralph Kramden/Fred Flintstone and maybe just a touch of Homer Simpson.
However, I've heard/read that Brian is a kind of representation of McFarlane himself. Maybe he let him take Snoopy's form and gave him his own personality? If you notice, McFarlane does Brian's voice, and it's pretty much just his regular voice.
You are probably right. If Brian is a representation of Seth, than I guess Seth Macfarlane is a lush and a skirt chaser!?!