I’ve seen some of the EVO players do the fierce version. It’s has the most risk but the biggest payoff. Light DP is the safest but lower payoff
i usually just cr.fp but if you are yomi’ing the F out of them, by all means, fp.dp
Akuma’s fierce srk has the most invincibility out of all of them, so it’s harder to trade/lose if you’re reacting to a jump-in. Cr. fp is a good anti-cross-up since the hitbox goes high, but not very far in front.