I actually got 20,000 miles out of the factory Dunlops but at around 12,000 miles my front tire was worn as well. I had plenty of tread, but it was definitely worn funny. The bike handled like crap the last 8,000 miles that I had those tires on the bike. The reason why I tried different tires was because I didn't like the drastic difference in handling that happened at the 12,000 mile mark. To be fair, they never caused me any issues for those last 8,000 miles. I just didn't like the way they "felt".
I tried Avon Cobra's after the Dunlops. They handled awesome but I barely got 10,000 miles out of the tires. Now I'm on a set of Metzler ME888's (the new touring tires that Metzler came out with). I've only had them on for about 4,000 miles so I can't comment on their wear yet. I can say they handle about the same as the Dunlops though. I've heard the Bridgestones get about the same wear as Avon's do but I haven't personally ran them before.
2011 Cross Country
-Cee Baileys Windshield & Lowers. Victory Lower Bag Rails, Driver And Passenger Backrests.
-RPW Exhaust, Lloydz Air Filter, VM1 Cams, ATS (Timing Wheel), 1/4 turn throttle & IAV. PCV with Custom Tune by Coweta Customs.
105.2 HP & 127 Ft-Lbs on a Dynostar (Eddy Current) Dyno.