I just beat dracula, yaayyy~
Now I can have an opinion on this fight. >_>
To be honest, I didn't have too much trouble with his homing attacks... Like Mak said, the white balls are tough. It's not because they don't have a predictable pattern, but overall they're a lot less smooth than the others.
It was my favorite boss so far though. With Tyson and Mecha-Birdo it just feels like "PATTERN FAILURE" but because Dracula's so adaptive it takes more thought, particularly with managing the ectoplasms. He doesn't seem just straight-out difficult, it's more like EPIC BATTLE.
Besides, managing to dodge both ectos and a seeking-fireball AND the triple-fireball at the same time makes you feel confident. >_>