Super Smash Bros. for Nintendo 3DS/Wii U deserves more love in the Smash and gaming community as a whole. I've seen some people say the original Super Smash Bros. is better than either version of Smash 4. The only people I could possibly understand feeling that way are competitive players.
The 3DS version was a big deal having a portable Smash, and Smash Run is fun.
The Wii U version was my favorite Smash to date upon release and my favorite Wii U game. It's a shame a few of the stages aren't in Ultimate.
Smash 4 obviously gets my vote.
Lifetime Sales Predictions
Switch: 161 million (was 73 million, then 96 million, then 113 million, then 125 million, then 144 million, then 151 million, then 156 million)
PS5: 115 million (was 105 million) Xbox Series S/X: 48 million (was 60 million, then 67 million, then 57 million)
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima