Over The Counter , I have tried a few over the years , my favorite now is Obiecue , I.m not affiliated with them , and have nothing to gain , just saying they have some awesome rubs and seasonings , so what do you guys like ? post up your links
I like the Weber "KC style" rub and (I'll be THAT guy) Famous Dave's Rib Rub. Both go good on just about any pork or chicken and are available at my local grocery store. Another favorite is Tony Chaceeereee's (ha!) Creole seasoning. Goes well with just about anything.
Local availability is a big factor for the products I use so I tend to steer away from the "special order" rubs and sauces.
I'll go ahead and throw the OTC sauces in too..
Weber Original and Buzzin' Honey
Stubb's brand sauces
Maull's BBQ sauces (STL staple)
Blues Hog original (if/when I can find it)
That about covers the bases aside from Sweet Baby Ray's which sits right next to the ketchup and mustard in the fridge.
Purchased the Dizzy Pig sampler pack last week. Have tried most and they are all good but I really love the "Raising the Steaks" for ribeyes and strips. The "Raging River" is awesome on salmon. Just ordered four more bottles from them tonight.
The Plowboys Yardbird is also an excellent choice.