I may upgrade eventually, but I'm currently using an old Weller WTC series iron. Temp controlled by swapping tips. It's an old industry workhorse design, very durable and reliable. For desoldering, I snagged a Hakko 808, and my god has it made life easier.
The WESD51 looks very nice too. Considered the Xytronics 8800, but the desoldering tips don't come big enough for the .156 header connectors I'm constantly doing.
I've heard mixed reviews on the Ayoue stuff, which are all Hakko look-alike knockoffs. Some people love them, some people find they aren't reliable even as a doorstop. I do like the layout of the 701, and wish I could get a real Hakko 701 here in the US.
Pace is what all the techs at my job use, very good, very expensive for a rework station.
-Hans