At damage cap the difference between them is about 10% or so. So I think when it comes to clearing trash, tank very handily beats brute unless we talk like, fire armor or savage, just due to how well those two sets scale with fury.
Brute will definitely win on a pylon or AV test, but it's a small advantage when you evaluate everything else. I think tanks are now overall stronger depending on the build. Brutes will generally exemp and level better, though.
I won't tell you brutes are bad now, they certainly aren't. Though I think the new toys tanks got gives them a serious edge in pretty much every metric besides dps benchmarking.