Well, the Avon's one slight weakness is from all accounts rain grip. They last a long time, which means they have to be a little harder down the center. Harder rubber means less grip when cold and wet, nothing illogical there.
That said, the R3T has some advantages - like the windshield and panniers you get stock, and the giant foot plates so you can move your feet back and forth and sideways as you ride to combat fatigue, and so on. Also, arguably the 180 makes the bike easier to corner, you don't have to wrestle it down the way you have a giant 240 that's really only there for looks anyway...
Power-wise they're down quite a lot out of the box, but a quick trip to the derestricting thread in the R3T forum and presto, back up to 140 or so (just a smidge down on the Roadster, in other words).
I didn't find the stock seat objectionable for comfort, but it looks like ****. Have a new Mustang seat on there now, looks so much better and very comfortable, and will be more so once it wears in properly. Was a ***** to install though, "snug" doesn't even begin to cover it, I thought it was defective the way I had to yank and pull on it to get it on...