Why so hateful? I'm sure R2 prefers to be called "stocky", "robust", or even "thick".
Technically he doesn't even walk. (granted, 85 people and their future grandchildren freaked out when you "rolled" him into the sunset a month or so ago)
Nevermind that he keeps popping up like a Jawa in the canyons, just long enough to glimpse but not quite capture...
On topic, I agree that AA was an EASY pick for EOL and I think there are still a couple sleepers left that are sailing under the radar while so much focus is on the obvious / popular sets. At any rate, in the immortal words of The Doors, "The time to hesitate is through."