Who would win? Who would fight who?

I haven't played all the Castelvania games so I don't know how powerful the Belmonts can be, but I know they face demons and monsters. The assassin do have some super human abilities at their disposal like the Eagle Vision and the ability to jump off Nortie Damn and land safely in a stack of Hay.

Witch bloodline is the cream of the crop? Who's has the greater linage?

Let's star with Altier vs Simon since they were the original protagonist and had less equipment then the others.