LOL LOL LOL I'd probably read all of these, I read cracky crossovers even when I don't know all the fandoms involved. I'm also writing um, drabbles where all the West Wing characters have daemons, and I'm writing this cracky story where Josh Lyman is Magneto's grandson. (It makes sense! Magneto went to Auschwitz and so did Josh's grandfather and... yeah.)

I will point out that people have already written that Doctor Who/Young Wizards one, and I'm pretty sure I've seen Highlander/Buffy x-overs, though never one I liked.