FWIW I have tried out the Rev (obviously since I have one) and 'stein out a number times with various cabs. Cab's were, Mesa Trad, Mesa OS (not on the 'stein), Krank Rev, Laney, Line6 and another brand, maybe Crate (I forget). Mesa wins hands down, IMHO, no competition. When it somes to the Head, in the room, the Rev sounded much fuller/larger and less sizzly than the 'stein and I swapped between them quite a few times. I haven't recorded/mic'd the 'stein so I cannot comment on that, so based on my "Live" comparison, I much preferred the Rev. But that's what it may come down to, personal preference.
As mentioned by others there have been some pro-recordings done with both heads that sound great. Either would make you smile.