I love the Mystery Dungeon series. I remember being so into Blue Rescue Team. One of the first forums I visited online was a search and rescue forum hosted by Filb where you could post rescue missions on dungeons you fainted on, as well as help others and rescue them from their dungeons.
There was a time when CYOAs were popular and there was this one CYOA on GameFAQs based on Mystery Dungeon, and I followed every update. I have no idea what the CYOA was about anymore but I just remember that it was good.
I played Explorers of Darkness and also had a good time with it, skipped Explorers of Sky although I hear really great things about it. I'm still not really sure what the difference is between that and Explorers of Darkness. I went to a launch event for Super Mystery Dungeon at Nintendo World Store, I think it was the last event before they rebranded into Nintendo NY. Went with a friend and also made new friends there, I had a good time.
In all the Mystery Dungeon games, I follow quiz guides so that I can get Cyndaquil as my starter and Mudkip as my partner.