Turns out my hunch was right on the money, as Imposter Ditto took the cake with 132 votes out of 233. Second place was largely predictable as well, with Techniloom snagging 42 votes. Beyond that, though, the few remaining votes were largely split, with Ice Body Regice being the "best of the rest" at 10 votes. Well I didn't see that one coming, I'm not sold on Regice being a force ever again, even with Ice Body... though I guess people really are looking for something better than Walrein to use its signature set with. After that comes Moxie Heracross with 9 votes... I guess Guts is a filler ability for the most part, though it's not going to help with the choice of either average speed or being locked into one move.
Multiscale Lugia, the Pokémon I expected to finish third, maybe even challenge Breloom for second, had 8 votes, same as Sand Rush Sandslash, whose appeal comes from the fact that no one knows whether it can be a decent substitute for Excadrill or not. Regenerator Ho-Oh was next with seven votes, but I think everyone secretly wants it to come about, both because Ho-Oh NEEDS it to be anywhere near usable, and also because such a major improvement to a sun abuser will help slow down rain's stranglehold over ubers. Sheer Force Feraligatr, the Pokémon so good 4chan spreads hoaxes about it being banned, obtained six votes. Lightningrod Zapdos and Water Absorb Suicune collected four votes apiece, Unaware Clefable got two (c'mon, if Quagsire can do so well with Unaware, Clefable can at least do as good), and last place goes to Volt Absorb Raikou with a single, solitary vote.
With that said, here's a new poll for you: which is your favorite Eeveelution? To be honest, I never understood the generalized obsession with them, and was never as fond of them as most people, but Espeon is the #1 ragequit inducer in this game, so I have little choice but to throw it my vote.