Favorite: That would be Squirtle, it was love at first sight! I also love Chespin, too adorable!
Least: It's hard to decide... I may be the only one, but I don't like neither Torchic or Cyndaquil (should I say that I don't like Fire-type starters in general?). The evolutions of that chicken are horrible for me, especially Blaziken (it's ugly, okay?). I don't have a problem with Cyndaquil's evolutions but I just don't like him. Oh, and I shouldn't forget about Fennekin, I despise him. That's my opinion, anyway ^^.