Yeah Akuma's alts are cool but Shin Akuma is always going to be the Most Popular.
Oni is going to happen and I'm sure Shin Oni will be his alt. That will be a BEAST of a PO. Hopefully his #'s will be higher.
Also I think Evil Ryu is inevitable as his own statue, and Evil Ryu has cool alts too. Cooler than regular Ryu.
I have a feeling it will be this one:
Hopefully with his gym bag.
That will sell out like all EX's will, but it's still not as popular as classic Ryu.