DSS3, have you tried the D Activator pickups? Mine blow the shit out of any EMGs I've played through, they're amazing.
I can't say what would be better with just that information - wood, tuning, and playing style would be much more helpful... as well as proper pickup size, I'd recommend comparing apples with apples.
Jeff
I've never been a fan of Duncan... EMG and DiMarzio for me, depending on what I'm doing with the axe.
I'd go for an 85 over the 81, as well.