After living in Birkdale for over a year, I have frequented Bad Daddy's on multiple occasions. I've tried almost every burger on their menu (that's embarrassing), and while they are all very different, I have enjoyed all of my food there!
1. They have the best tater tots. Period. No questions asked. The Bad Daddy's sauce make them that much more enjoyable.
2. The first burger I ever ate at Bad Daddy's was the Frenchie, and it is one of the best burgers I've ever had in my life. I also love the bad-ass burger (though I can never actually fit the whole thing in my mouth...). They have a killer tuna burger, as well. Honestly, whatever you get there, it's going to be good.
3.You can substitute any burger/bun (or lack thereof) with each specialty burger (or BYO!). I usually will substitute a lettuce wrap for a bun, and they do a great job wrapping the burger so you can actually pick it up and eat it!
4. If I am not in the mood for a burger, the BYO salad option is awesome. You can add chicken (or a burger!) on top of your salad. The small size is enough to keep me happy if I get a side of tots with it, but otherwise I usually need a large size to keep me full.
5. Spiked. Milkshakes. That is all.
You won't find a better burger joint north of Charlotte.