User blog comment:Kogath/Monster Hunter X Discussion/@comment-25706585-20150714000013/@comment-25275196-20150714084206

I think rivalries will goe like this:

Dinovaldo: Deviljho (both brute wyverns that look strong and slightly resemble each other, and a fight between them would be something to behold)

Popodrome: Tigrex (Fed up of tigrex feeding on other popos, and they also both rule they snowy mountains)

Shandroth(bubbles): Zinogre (both apex monsters of the misty peaks, and contrast each other very well)

Serelectric(dragonfly): Probably rathalos actually (I know that seregios is los' rival, but think of this: both inhabit the forest and hills, so there would be a lot of competition for prey and teretory, Rathalos is weak to thunder, and from serelectric's fragile wings, he's probably weak to fire. And Serelectric kind of looks like a replacement to seregios)

Rimosetosu: Either slagtooth or aptonoth (probably aptonoth, because it's the first herbovore vs the most recent herbivore, and weather classic can beat modern)

Maccau: any of the preydromes or the "aggi"s (but most likely velociprey, for the same reason as rimosetosu vs aptonoth)