Yeah M'Baku was always just one of the greatest warriors who tried overthrowing the government when T'Challa took a leave of absence. I'm not as familiar with the Ultimate stuff, when I saw BP actually turning into a panther I was done. 

I am interested in learning more about the Ultimate F4 though, particularly Ben Grimm's transformation into an energy being of some kind after hooking up with Sue after Reed left the team. I just never got around to finding the right wiki article...

~KL~