I just got back from a trip to Nashville. That was a great TSA experience. Very quick and convenient.
I think Oakland has been my worst experience lately.
Las Vegas seems to be hit or miss. I have been stuck for an hour one time, but usually closer to 10 minutes.
My worst ever was Denver about 2 months after 9/11. But I think everything was bad then. 4 hours!!! At least they told us in advance to expect that. (Literally, I drove the next two trips, since drive time was 6ish hours and flight time with TSA was 6-7 hours!!!)