I'm sure that everyone knows about the Mario series (including the newest addition, Super Mario Galaxy). However, I'm kinda curious about everyone's experiences with the series.
Which game is your favorite?
Which would you consider the hardest?
I've played the first three Super Mario Bros., Super Mario World, Super Mario All-Stars, and Super Mario RPG. Out of them, I've always had the hardest time with the first game, and Super Mario World is easily my favorite out of them (and the easiest, in my opinion).
I don't throw SMRPG in there with the side scrollers, since it's not really the same thing. However, it's great in its own way and is a very enjoyable game. I've been told that Paper Mario is also good, but I haven't tried it.