Googleshng:
I'd think Amelia from Slayers would frighten just about anyone really.

Anyway though, getting your levels up in Disgaea. The first thing you have to realize is that there's only two ways anyone ever gets experience. By being on the map when you get a bonus gauge experience award, and by getting the killing blow in on a monster. You can set up a big huge 10 person combo, but nobody in there gets credit for the kill except for person number 10. Unless of course person number 10 is doing a team attack with those around him, in which case they get an even split of the experience.

So anyway, the best way to get experience for low leveled characters is either through the bonus gauge, or helping with team attacks on maps with invincibility there to keep them alive.

The best place for higher levelled types meanwhile, at least for a good sized chunk of the game, is the Cave of Ordeals. You can get a good 50 levels for someone in just one round. Insane experience, but that's the whole point.

Googleshng:
If Strong Bad has taught me anything, it's that this person here was a vampire, killed in the middle of sending this letter. I think a moment of silence is called for here.