To me, if you're using sauce and rub, it's not as simple as just selecting one rub and one sauce, as very few enjoy eating their Q made the same way everytime. So, you've gotta understand how to pair flavor profiles.
Example: Blues Hog is a very sweet sauce, so if I'm using it to finish, I want to use a rub with some bite in it, like 3-EYZ rub.
If I'm using a finishing sauce like my own "Bills Homemade BBQ Sauce", which is a sauce designed to give "bite without the heat", I want a rub with pure flavors, like Harry Soo's Slap Yo Daddy rub.
I'd suggest you experiment, and find combinations of both in the various sauces and rubs, and pair them as in the 2 examples I cited above.