Funny..was just looking into this myself. Been using Muc Off Dry all year so far which has been good. I pretty much wash my bike down after every long ride, obviously not if its been really dry out there and everything is still nice, clean and shiny.
Used Muc off wet once and hated the stuff, it just makes a soup of grit and dirt in your chain.
With winter approaching looking for something a bit tougher than muc off dry so may try Rock n Roll Extreme.
EDIT: After looking through some reviews, seems a gripe is that you have to use a lot, may stick to the muc off dry – 125ml bottle has lasted me 500 miles of trial riding.