arkham knight is really ing fun tbh
the free-flow combat does feel very simple or dumbed down after having (relatively) recently played God of War... but there's enough enemy variety to force you do approach situations differently so it keeps you on your toes enough to keep it interest (between brutes, shielded enemies, armed enemies, guys with shock batons, guys with swords, etc)
the batmobile play doesn't compare to the regular stuff, but it hasn't been quite as bad an experience as i had read about, though to be fair i did dump most of my early experience points into batmobile upgrades, to make those long battle sequences less of a chore. the open world is big, but its fun enough to grapnel/glide through it, especially when you get the grapnel upgrades. there's also a really solid amount of side content beyond the main story. its at least as good as asylum/city so far, though i havent really had boss encounters yet (unless you count some of the armored vehicles like those massive drones/choppers). the boss battles in asylum/city were quite fun.