I don't really have a sweet tooth so I'm not into candied up BBQ especially beef, some of the best beef I've smoked was rubbed with just salt and pepper. Next slab of Full Spares I do, planning on going with just S&P and see how they turn out.
I almost never add BBQ sauce to anything before it's served, once in awhile I'll glaze Ribs for my wife, sauce is put on the table and if people want it, it is there to use. Sometimes I will put a little Blues Hog Tennessee Red which is a vinegar based sauce or Swamp Boys Boot Leg Red Vinegar BBQ Sauce on Pulled Pork. The Boot Leg Red only has 1gm of sugar per serving and is more of a table vinegar than a BBQ sauce, it's good on veggies too.
My wife likes sweet BBQ sauces especially Sweet Baby Ray's and Blues Hog Original, she puts sauce on almost everything I smoke be it beef, pork or poultry and would probably love Comp Style BBQ so hey to each his/her own.