Personally, I prefer the squirrels. I think they're the underdogs, they're more radical since they stuck to scat and didn't sell out. (Of course that might also be why they went straight down the toilet.)
And lest we forget, Ross Bagdasarian, AKA David Seville, provides the mission control voice at the beginning of Russ Garcia's outer space masterpiece "Fantastica" (1959), which is better than 99% of the science fiction scores that are routinely discussed around here:
BTW, thanks for the videos, David! When I was in, I guess, 2nd grade, a local TV station had a morning show which featured "Uh-Oh" as its theme. I guess I thought it was the chipmunks singing as I was already a fan of them. I would watch the start of the show as I getting dressed before school just to listen to "Uh-Oh". it must have been 40 years or more before I learned that the song was by the Squirrels.
So, really I have to pick the Chipmunks as my fave.