>>51612936>>51612958I feel like the MH devs do a good job at not shilling out any one monster too much. Plus, Rathalos is the series mascot, so I'd equate the Raths to Pikachu instead.
If we really had to choose a "shillmon" (shillmonster?), I'd nominate Nargacuga. Blatantly overpowered weapons, popular armor design, nostalgia stemming from many old school players from Monster Hunter Freedom Unite when they encountered Narga for the first time, the list goes on.