I think the whole 'park' atmosphere actually made westworld more interesting. the stakes were high locally but not globally, and that left a lot of room for growth and interesting stories. Once they jumped out of the park and made the main characters pretty unlikable, the whole thing sort of flopped, to me. Season 2 was the last of that.
I never watched HBO's watchman because I was a fan of the original comic books and modern remakes of almost everything are terrible. You could be right though, I haven't seen it.
You should give HBO's Watchmen a try nonetheless. It's set a few decades after the story of the graphic novel, basically continuing the path of "alternate history", (not so much the path of the original characters)