PoptropicaPoptropica is cool, it's good how you use your brain to solve stuff! (Did you know that Jeff Kinney, author of Diary of a Wimpy Kid made it or is one of the owners of it or something like that?) and (I hate the ads, keep on clicking on them when I do an intense part)
Club Penguin is okish, it's just that members get to do too much stuff.
Animal Jam is fun like PoptropicaPoptropica, WAY too mucmuc hscamming, it's really sad, *cough cough* stealing at the ages of 7 and over *cough cough* If you want to play a rarity game, do chickensmoothie, it's more suited for that rarity stuff.
Umm... I don't play Pokemon or Skylanders... so I can't say much.
I hardly play those games anymore... Spirit Animals and the linked series to this is WAY better (and minecraft!)!