Ah, I must admit Pidgeot is the best for me.
Maybe because of its awesome hair, its obtainability, its Mirror Move -- but meh. I don't like Pidgeotto, the Taillow line or the Starly line.
Doduo-Dodrio, Spearow-Fearow and Hoothoot-Noctowl are all fine by me, but Pidgeot's just too awesome.
Maybe because a while back, when I first got LeafGreen, a Lv.3 (yes, I remember) Pidgey was the first Poke I ever caught... it took it three years to evolve (two and a half of which consisted of forgetting about the game), because I to put it simply SUCKED back then.
In fact, I only beat the E4 a few months back... Argh, I don't know, LG just seems so much slower than RBY...
AAAANYWAY. Off-topic.