You're right, Hardee's burgers are the best fast food burgers in town. Bit early to start washing down though, no? McDonald's leave an aftertaste in the mouth and Burger King's leave a tangy smell on the hands that requires repeated washings before it disappears. Plus they microwave their "flame-grilled" burgers before they serve them!
Avoid Applebee's burgers, the worst quality meat. Even their steak cuts leave a lot to be desired.