In a lot of roguelikes, one of the big comparison tools is not necessarily score or experience, but turncount. It'd be really cool if you guys could add a high score table of winners by turncount, so that way it's not just who stocks up on loads of food and spends a million turns killing people, but also players who defeat Satan quickly.
I'm not saying remove the current scoreboard, but just make another scoreboard for low turncount winners (of course comparing Wizard and not-Wizard turns would be meaningless since teleport doesn't take a turn).