That is exactly what I'm saying, although I don't imagine Xavier House will be equivalent to Gryffindor in the values of its students. Charles probably doesn't like the idea of everyone being divided into houses at all, come to think of it.

Hmmm, good question about the remaining two founders! Definite yes to Raven. I was going to suggest Moira, but then I remembered that in this universe she would be a Muggle. Hmmmmm. Maybe a later character? Blast, I really don't know enough about the X-Men universe.