Well, here's a thing though. Putting effort is really meaningless if you think about it. By now 90% of the roster must have been decided. No ammount of rallying or chanting os gonna change who got in or not. The only ones worth supporting are late-comers, characters who had little support a year ago, but now are seeing a rise (like Ashley). And 3rd party characters, who still very much a shot in the dark.
The big ones, Pokemon, DK, Zelda, Metroid, Mario and FE, are pretty much set in stone at this point I'm sure.
In fact, if you think about it, getting support for unlikely faces is a more fruitful endeavor at this point, because if anything, it raises their suppor for Smash5.