Ganondorf the Gerudo directly appeared in Ocarina, Wind Waker, and Twilight Princess. K Rool was in all three of the original DKC games, as well as DK64, along with other DK/Mario spinoffs (DK Land, Jungle Climber, Mario Sluggers, and more).It's not that I mind Dixie. It's just that Dixie confirmed would give those damned "muh relevancy" ****ers fuel. Even if Dixie deserves it on her own.
Really, Tropical Freeze just came at a bad time. It's like if Minish Cap was the most recent zelda game in the pre brawl days, and everyone started screaming for Vaati instead of GANONDORF, or some Zelda character in that that was still relevant to the major series.
Speaking of Dorf, hasn't K. Rool had alot more appearances than he?
So the Kremling King does technically appear in more individual games than the Gerudo King.
As for Dixie, so long as her inclusion does not come at K Rool's expense, then bring her on, whether as standalone or teamed with Diddy.