I'm playing the Walking Dead game, and ... Holy shit it's pretty good!!!!
It's not cutesy or light like other Telltale games. Everything looks somewhat cartoony (think Borderlands) but holy shit it's gritty & gnarly in VERY surprising ways. Just finished Episode 2 and holy christ O_O
It's an adventure game, but the puzzles are not obtuse, and the UI isn't clunky. It is slow-paced, and involves a lot of talking to people and shaping the plot around decisions (sometimes, REALLY hard decisions). Think Heavy Rain, with less context button-mash (though there is some).
(Note that it doesn't involve the plot from the show or comics, but involves the world & sometimes the characters from them, though mostly in cameos.)
I am actually really damn impressed with this.