I love RPG!Bowser/Peach, but my god is it hard to find any decent fic that lets him remain the hilarious jerk he is instead of turning him into a giant sap.

(Actually, I wouldn't even mind him as a giant sap in the privacy of his own head and journal as long as the author had a good Bowser-voice going on in their writing, but around other people he has a reputation to maintain!)