fallout: new vegas has some of the best writing, stories, and world building i've ever seen in a game. unfortunately, i've only gotten to experience these second hand.
the gameplay feels like they copied an existing engine (which they did) without knowing what features they were working with, so it ends up playing horribly. you have to spend three hours installing mods to get it to not crash randomly, even though it still will.
i do like how getting to new vegas has two options; actually listening to npcs and following their directions, or going straight to the quest marker and getting your ass kicked. that's fun! everything else sucks. too bad