623aa is safer than 623bb.
I played F-nanaya all weekend and he's definitely going to be the char I play most. C-nanaya is just a toned down MBAC nanaya (slow 2b, less range on 5c, no more 2b5c214b as corner oki, nerf of aaaaaaa in general); and I like playing H-nanaya (and his damage) but he does get kinda boring quick.
I was using *whatever*2c236aa as my bnb, but パロスペ was opting to just keep them standing and do 236aaa. I tried them both and felt like my way set up better for the oki and gave an extra second to prep, but after watching him I'll try out 236aaa again.
And finally nanaya can do that stupid Akiha lvl0 mixup- ja > ja or ja > 2a. パロスペ was abusing that in the corner