Next week AMD will have their third version of Ryzen out (2nd gen. Zen architecture) and there should be plenty of general reviews out. The way it seems right now they may have some very, very good chips available.
Some reviews should include the DAWbench test. I’d keep an eye open on Techreport.com and scanproaudio.info. The latter actually sells workstation computers and the former is a general tech site but has used DAWbench recently. That test should give you a good indication of relative performance of current and last generation chips.
My hunch is that AMD’s new chips will offer excellent performance for the dollar and that Intel might lower their prices to respond which would be a first in a long time.
You should state what your budget is though if you want advice. Also, there used to be issues with UAD Quads on some motherboards from both Intel and AMD, so that’s something to watch out for. Speaking of motherboards the new ones for Ryzen are looking great.