There are ladders on www.d2jsp.org, or at least htere was a year ago, I don't know about know. It's really not a question of dtop duelers though, it's a question of who's gathered the most expensive gear.

Just a funny side note, you can tell if the hammerdin you are dueling is a nerd by seeing if hes using a wiz spike and a BP nigma. They would rathr save the extra 10 str or so and look like afaggot over going to the LP nigma and looking like a real paladin.