At first when I heard Riff Raff years ago I thought wtf is this bs. Then the more I heard I felt like who gives a fuck, he rockin on some dope beats and he is just comedy really. Then I thought about some of the more funny rappers i have enjoyed over the years, Kool Keith been hilarious, Camron says some ridicolous shit. Riff Raff is just a more extreme or gimmicky version of those two but still the dude can do a good hook, he gets some good beats, im not huge on his rapping, but get ya money young fella.
As for Awax, got nothing bad to say about him doing a track with Riff Raff, he prolly just got a ton more fans in the grand scheme of things. Even if you hate Riff Raff as a Fan Of Awax you cant really give him flack for once in a blue moon doign a track with someone you don't like.