I do one of 8 things:
MS~2, if I think people will walk/dash back without blocking.
IADK, if I think people will poke with a long reaching attack.
JIP~Divekick option, if I think the opponent will jump in. If they don't then I DK the AA attempt.
D4, self-explanatory.
Dash back with ring toss , same with IADK. Use this more with heavy rushdown attack.
Enhanced Kartwheel, if I think people will pokes or use projectiles and I don't know which.
Arc kick, for jump ins or forward moving armor moves, only really need to worry about dash back with block.
NJP, for jump ins.