I've never met a rootbeer I didn't like. A&W has a slight coffee flavor in the background that I like a lot. IBC is my everyday drink. I've tried Virgils, Fitz and Weinhard, Goose Island, and liked them but don't think any justify a premium price.

One near the top of my list was brewed on-site at Hops restaurants. I haven't been to one in years, but it allowed me to have lunch there and go back to work afterwards.

World Market is a good place to explore a few rootbeers. I have also bought some online, including old timey favorites Hires, Dads and Frostie.

Try root-beer.org for reviews and introductions to new ones. You have no idea all that are out there until you look.