If you want a Castlevania movie, it has to follow some of the same things that made the Solomon Kain movie so damn good, then apply them to a castlevania character. I find it hard to choose any single Belmont. They were all pretty snazzy despite the lack of character development. Though I have to say, Morris and Eric would both make a good pair of leads who can follow Bram Stoker's Dracula more closely then any other castlevania setting. That alone would be acceptable to mainstream and Castlevania fans.