There's an upscale grocery chain called Kowalski's here in the twin cities. Their store brand KC style sauce is mine and my wife's favorite. We received a case of it for Christmas from relatives. I also like Famous Dave's Rich and Sassy.
I'm not big on sauce, but I keep Sweet Baby Rays in the fridge. I also have some Wegmans Memphis style sauce because its not very sweet and makes a nice starting point for tailoring it.
I like to use the Earl Campbell's Rib Rub. I mix a small box of Cherry jello powder with it. I use cherry wood for the smoke .Every one loves 'em. Also Academy Sports has Grub Rub that I like to use when I can't get the Earl Campbell.
For sauce,I like Sticky Fingers Memphis or Tennesse style sauce. For rubs,Stubbs has a chile-lime that's out of this world! Bad Byrons butt rub is good too!
I like Goya "Adobo" with pepper for an all-around rub. My wife and I are not into sweet meat, and it's got a real nice flavor. On ribs I'll often add a bit of Montreal Steak seasoning.
I use 1/2 Sweet Baby Rays and 1/2 Open Pit mix and heat. I don't like to use a lot of sauce on my meats but always have sauce on the side for my guests.
Another vote for Sweet Baby Ray's here. I cut it in half with Frank's red hot sauce to make a great chicken wing sauce, and cut it almost in half with cider vinegar and a dash of red pepper flakes to make a finishing sauce for pulled pork.