REL or Martin Logan?

Just wondering if anybody has compared two.I would throw Vandersteen 2Wq into mix but they are single price point unlike ML and REL.Have heard very nice bass from Velodyne,Revel etc and know if you want to spend $3K you can get great bass that intgergrates with many speakers but have heard that those with fast very pitch accurate speaker that are fast like Magnepan,Martin Logan,Quad ESL's etc do better with multiple drivers creating depth of bass and air pushed because they themselves are faster (at their price points they exceed large 15-18" units).

I have horn speakers now but no matter what I have I am more into music than HT so would sacrifice some depth or slam for finese and easy integration.Also am intrigue by single driver TBI's but haven't heard them while I have heard REL Strata.The one execption I have thought to this out because of sophisticated software is new velodyne DD series but still think ML,REL, or even Vandersteen (which would be shy of depth I want) would be better design wis so wondeing if anybody has gone head to head REL/ML
Thanks
Chazzbo