As much as I dislike the slowness of Sedo, I have to vote for Sedo in this thread. I have routinely listed the exact same domains at AfterNIC and Sedo, but have yet to record a SINGLE sale at AfterNIC (probably close to 30 sales at Sedo in the last year). The AfterNIC auction page is RARELY populated by any domains, while Sedo's auctions are generally quite active.