Basically, the logo in the Stardust Crusaders' translation lacks the American logo's shading and IMO the animation there fails to evoke "stream of fire" imagery that it should probably aim for. I think that the Quest Games' translation has inferior text scrolling and an odd-looking logo so overall I wouldn't recommend that one. I've asked Pennywise about the issue and he said that he can't help. I'm guessing the necessary palette change should be implementable?
Castlevania: Rondo of Blood translation improvement
I've mentioned this in the relevant thread but a lot of people probably missed it. This hack, while great, could still use a lot of work. It needs Windows to apply and even if you manage to apply it to the Redump image it'll fail to load. And obviously, the translated credits would be nice to have as well.