Y'all biscuit heads aren't being reflexive with your arguments.
Firstly, Banjo as a series has 5 games, not 4 (Kazooie, Tooie, Grunty's Revenge, Pilot, and Nuts & Bolts).
Secondly,
. Is it just me, or does no one seem to remember that FF7 didn't have a sequel? If Banjo's "one game that gets mentioned all the time" (bull, by the way) isn't enough to be iconic, Cloud's one game and one anime shouldn't be either.
"But Cloud's cameos-" Shut up, we've never taken those into account when discussing Smash characters. Besides, Banjo absolutely also has cameos. Remember Diddy Kong Racing?
Fun fact, FF7 and Diddy Kong Racing came out in the same year, 1997. Fun fact, FF7 came out early in the year on a console with a MUCH larger install base. Fun fact, Diddy Kong Racing got into the Guiness Book for being the "fastest selling game of all time."