I don't know about anyone else but I love my black label at borgata. Ten comp dollars for buffet, which I think is delicious and Amphora is well worth the ten comp dollars; food is awesome. You get slot dollars put onto your card every month, no hassles with going to the cashier and standing in line, slot tourneys, and great rooms. And their machines pay out more.
Another thing about Borgata, they don't make their red label people feel ignored like Harrahs does- I hate the system over there. For me, it's an easy choice.