Oh for the love off....
You people have no knowledge of the past.
First off...
The "Big three" is a really dumb concept. It's implying that they've all been huge fan requests since pre Brawl, but that's only true if you stretch things a LOOOOOOOT and ignore even more.
You wanna know which characters were really popular pre Brawl? Only Ridley and Geno. K.Rool wasn't a popular pick because most DK fans logically went for Diddy who wasn't in at the time. It wasn't til after Brawl that K.Rool started to get a notable following and I think old K.Rool veterans (and vets in general) can back me up on that.
@BKupa666 @Fuzzy Pickles!
N3ON
You wanna know who was popular before Smash 4? Only Ridley and K.Rool. Geno popularity plummeted at that time. Something several veteran Geno supporters like
@PsychoIncarnate can vouch for.
Even then, after Smash 4's ballot period, Ridley support took a turn for the worse and Geno was just one of many popular requests.. K.Rool was the king there.
This "big three" only became a thing now. And even then it straight up ignores characters who have had fanbases of equal size and have been waiting just as long like Dixie Kong and Isaac.