I've only played a little of Maiden, and no JP yet. Avengers got me on theme, art, and beauty of the shot layouts. So far, I'd say it has an amazing number of shots (bear in mind my lack of experience with Elwin pins), incredible combo's and a deep ruleset that is going to take ages to fully explore. Downsides are that the subway is a cool feature (IMO) but a weak design and is constantly losing balls, bits breaking off etc.. for a lot of people (myself included). I'm expecting Stern to fix this and send out parts or updated mechs at some point. The game mechanics can be frustrating at times, as it's pretty brutal in that you only get one attempt at each stone (or mode) and I personally find the music quite sombre and could do with something a bit more upbeat or heroic (totally subjective, but I expected to be fine with the music but it's grating on me a bit). With that said, it feels like it has the most number of shots in any game I've played and generally they are pretty smooth and easy to find (Cap Marvel loop can be tricky, but I like a tricky shot in a game \*cough* Death star Ramp *cough/. I like it a lot, and I usually take a while to warm to a game as i hate feeling like I'm crap at it.