I've lived in the QC on and off for about three years, and I can say hands-down that Thomas Street Tavern is my favorite bar in Charlotte!
There is absolutely nothing to dislike about this place. Walk in and you get that old bar feel, with friendly bartenders to greet you on the right and a pool table on your left. Be sure to order an extremely affordable beer ($4.50 draught everyday!) for yourself. The taps rotate, but yesterday included the Triple-C IPA, Highland Gaelic Ale, Guiness Stout, Noda Midnight Madness, and more.
After you choose a delicious craft brew, keep walking out back and you'll find another bar entirely, TWO Ping Pong tables, and a Cornhole set ready to rock. I spent the better part of last night holding down a table, which is exactly the confidence boost a struggling doctorate student needs every once in a while.
All in all, terrific bar and I find myself coming back at least once whenever I visit home. I've never tried the food, though it always smells like fried heaven. Stay exactly the same, Thomas St Tavern!