Mario: Played Super Mario Bros., Super Mario Bros. 2 (got really far, didn't finish), Super Mario Bros. 3 (got about 1/2 way through), Super Mario Bros. The Lost Levels (failed terribly), Super Paper Mario, Mario 64, Mario Party 2, Super Mario RPG, and am currently playing Super Mario 3D World
Luigi: See above, don't like Luigi except in the original Mario bros., Fire Luigi with the green and white outfit was amazing
Peach: Despise despite saving her a few times
Bowser: See above
Yoshi: My sister got Yoshi's Story from a friend for free, played it like crazy (mostly in a sibling competition for high scores)
Rosalina: I read the storybook online... and that's it, haven't even unlocked her in 3D world yet
Bowser Jr.: ...
Wario: Got a Wario Land game in the 3DS ambassador deal, played it for about 60 seconds total, also got a WarioWare game from the same deal and I played that like crazy and loved it
Mr. Game & Watch: e-reader ;_;
Donkey Kong: DK64 was pretty much my childhood and first 3D game, later on I got interested in the DKC series with the announcement of DKCR, and WOW, the DKC series is beyond amazing, played them all (except DKC3, they got taken down from the eShop before I finished the series). DKC2 Diddy's Kong-Quest in the best in the series. Despite the gameplay being 100% different I still love DK64 and think it's a great addition to the universe (except for Lankey Kong, I hate that smug idiot)
Diddy Kong: See above. It is my belief that all the "DKs" plastered all over the place actually stand for Diddy Kong but no one wants to break the news to Donkey Kong. Diddy Kong is the TRUE main character. Plus Diddy is a freakn' beast in DK64, and was the main character of the best game (DKC2)
Link, Zelda, Sheik, Ganondorf, Toon Link: The Zelda series is my favorite video game series, and I have played and completed every single canon entry to the series. Except for Oracle of Ages (broke before I got to the end), Zelda II (I just... can't), and I don't own Four Sword Adventures. Wind Waker and Majora's Mask are my favorite, and my most hated Zelda games (that I've finished) are Phantom Hourglass and Four Swords.
Metroid: Played the NES game for years as a kid, never beat it, but it's just so atmospheric, I get chills at the title screen every time! Didn't like the gameplay of the Prime series, but I loved the atmosphere and lore. Played Prime 1 & 2, never finished. Super Metroid, Fusion, and Zero Mission are the only games I finished.
Kid Icarus Series: Beat the original NES game and Uprising, in the latter game I really fell in love with all the characters (except Viridi, she was annoying, but the good type of annoying you know?)
Marth: Played Shadow Dragon (WITHOUT battle animations, man were those ugly) and got stuck on the final battle, I should really finish that...
Ike: ...
Robin & Lucina: Fire Emblem Awakening is the best 3DS game... OF ALL TIME! And I
may have married Lucina... so yeah biased.
Kirby: Played Kirby's Epic Yarn and Kirby's Return to Dreamland with my younger sister who loves the series, never played the older games.
Little Mac: NES Punch-Out and the Wii Punch-Out are amazing fun.
Star Fox: Got Star Fox 64 at a garage sale a few years ago for $2, didn't like it.
Pokemon: Generation 1 & 2 were great! Played Ruby but didn't like it because it didn't continue the "lore" and I didn't like most of the new Pokemon. Didn't play a new Pokemon game until Y just recently.
Duck Hunt: A BLAST when I was younger, cheating with the gun against the glass of the screen FTW!
ROB: ...
Ness: I love the entire MOTHER series, but I'm part of the group that likes 3 the best RIP Lucas ;_;
Captain Falcon: ...
Villager: I bought a gamecube solely for Animal Crossing (didn't realize there were other amazing games until later), first game and console I saved up for and bought myself. Never got any other Animal Crossing games, don't want to "replace" my precious village and my best friend Boots.
Olimar: Only played the entire Pikmin series about a year ago, but it's amazing and I never should have judged it as being "dumb" for all these years, I was SO wrong!
Shulk: Xenoblade... oh man was amazing. Funny thing is I never heard of this game, I was excited for The Last Story and that was the reason I got involved in Operation Rainfall, and THAT'S where I slowly got convince to get Xenoblade, and I never regretted it! Amazing game, sort-of ugly faces
Pac-Man: Played a bit of the original, never liked it that much
Mega-Man: ...
Sonic: Played a bit of 1 & 2, never liked them that much
Dr. Mario. THIS was my Tetris