I haven't played Rangers yet, but I've been looking at it, Ghost Archipelago, and Frostgrave. I don't have a whole lot in the way of minis, terrain etc., but my 5yo son and I like to play fantasy miniature skirmish games with what I've got. From what I've read and the videos I've watched, the rules seem pretty straightforward. Bookkeeping is light enough that I can handle it all myself until he gets a little older and can get more into that aspect of the game.
What about you? Have you played Rangers yet? How does it stack up to the others in terms of mechanics? I like the idea of it being solo and co-op friendly, but since my son always wants to play the orcs and other monsters he might not be into it as much.