I'd like some advice on picking a BB sub and GG main.
First I'll talk about my BB experience. I've been playing it since Extend's English release and once I hit character select I immediately thought "Noel will be my main!". I spent a year maining Noel and I still like her Extend playstyle. But then I discovered a character that was even more fun to play and made me understand Blazblue's mechanics (and even stuff from fighting games in general, like properly applying pressure, oki and mixups) more. Said character is Litchi. Started learning her some months ago (like 8 months ago) and was quite satisfied with my new character. I felt she had almost everything I needed (range, normals, corner carry and a mixup-oriented gameplay) and 13 Orphans was an amazing DD. But then I stopped playing BB for a while because of other games.
I got digital CP as soon as it was up in the PS Store and the first thing I did was hit training mode with Litchi. It felt like something different, but that was to be expected from a new game. Her neutral game got better, she got an excellent normal (4B) and more ways to deal damage at the cost of making me miss the old 13 Orphans. After checking the new characters I settled Litchi as my CP main. But I still think that's not enough. I'd like to play as someone else too, especially if said character has a not too similar, not too different gameplay from her. I'm lightly considering Tsubaki and/or Izayoi.
And now on GG... I have almost no experience with it. Who could I pick there that has not the same, but a somewhat close feel to the BB characters I mentioned?