you can't really compare any of the legacy carriers to atlas, completely different beasts. That being said Atlas is a good place to work, yet it has it's pitfalls. The contract is ok but still needs a lot of work.
For me Atlas is good as I like the chunks of days off, I can't do the one here two there deal. I love the international flying and well I spend most of my time making coffee and warming up meals, yes I've only had two landing in the last two months and yes I'm very proud of this