I'm currently running both of those speakers right now. My 90's Peavey Sheffield 1290 4x12, and a very recent Mesa vertical 2x12 with Vintage 30's.
Although I like them both, they sound quite different. The vin 30's seem to have more high mid aggression, and the 1290's seem to have more of a balanced midrange, it doesn't jump out or sound scooped, just kinda neutral. I find the 1290's to be dark overall though. I don't hear any ice pick treble frequencies.
The two cabs sound great together. But, on their own the peaveys are dark and the Celestions are mid aggressive. That's what I hear out of 'em anyway!