661 Comp is good at the price. Can’t comment on others but yep, definitely no reason to spend
One thing to watch is, if you’re doing more than downhill you want to make sure it’s well vented- if you decide to wear it for trail centre stuff you’ll boil your head in a poorly ventilated lid, and that’s probably less safe than just wearing an open face and being comfy. Weight can make a bigger difference if you’re wearing it for longer, too. I’ve got the luxury of a light, very well vented fullface (down-o-matic) and even then, I don’t like wearing it for anything that’s using a lot of pedalling. I once wore my old Comp for an enduro rate and oh my word, miserable.