Wii Sports came with practically every Wii ever sold in stores. Though I would never buy it, I did quite enjoy my "free" game.
Wii Tennis was decent, but I wished I could move around a bit more.
Wii Baseball was pretty fun, but like Tennis I wanted more control.
Golf was annoyingly picky.
Wii Boxing was alright, but I could never play my brother due to lack of 2nd Nunchuck.
Wii Bowling was pretty sweet though.