Avid Guide R here, still bedding in, but they are crazy powerful compared to my old Deores, the lever is super comfortable, Im really enjoying them at the moment, I wouldn't mind giving a set of TRP G spec ago, they look amazing. https://trpcycling.com/product/g-spec/
Still not actually used Magura on an MTB yet, you don't see so many out and about on the trails, there's always good old hope? they just don't tick a box for me, they look a bit OTT and the levers are uncomfortable