Williams 30x
Mavic OP
Mavic CXP22s - My 21s just died and they are from 1997.
Sunrim CR18

Depending on your weight stay around a 28 spoke. Hub is your preference. Mine is the Alchemy Orc.

As far as wear. Run your fingers over the brake surface if there is a dip or dive or a noticeably thinner section. Kill the rim before it kills you. I have a post on what happened to mine when the brake surface died.