Since in the 90s Toybiz had a Vault wave/toy line, why not have Hasbro do one?
Mentallo (80s handbook)
Fixer (80s handbook)
Cobalt Man (original 60s costume)
Red Skull (suit and tie) (he's the "anchor" figure, to help sell the wave, to non comic book fans)
Typhoid Mary (90s costume, like what...
I like BAFs, but many of the characters could now be "deluxe" figures, and the bigger ones made good fodder, for a Haslab, when that was around, but now those seem to be semi MtOs, or in some cases, figures that retail wouldn't sell. :)
Honestly, I like both, the themed gets us characters all from one grouping. Mixed throws us back to the old Toybiz days, where they just give us a most wanted BAF, with random, sometimes most wanted characters. :)