User blog comment:SethOmega/Most Powerful Monster/@comment-5020152-20121023204737

Since Gendrome would unlikely be involved in an underwater battle, he would probably win. He's much better suited to a fight on dry land, and he's got that powerful paralyzing venom to take into account. Once the R.L.'s paralyzed, he's completely helpless.

Nargacuga would win against Rajang, although I admit it would be a close fight. The fangs, tail, bladed wings, and spikes gives her multiple ways to injure Rajang, and she's quick enough to easily dodge his electric attacks, provided that she knew what's coming (like us hunters, for example).

Sorry, Gypceros, but it's probably a no-brainer as to who will win this fight. Blangonga is several times stronger and faster than you.

Espinas' thick armor and toxic fireballs would win the match. Rathalos, after all, isn't in the air nearly as much in Frontier as in 3rd Gen. On land, he's a complete pushover for Espinas, I'd say.

Diablos would crush Hypnoc, and would likely defeat Deviljho in a fairly close match.