These are people that stood out on their respective seasons of Survivor or Big Brother. Any reality show where you are a contestant qualifies for this list. I'm not familiar with any other shows so if I left someone out, please add it.
http://www.ranker.com/list/who-is-the-best-cast-contestant-on-a-reality-tv-show-/stokified, all people, people, tv, reality tv,
Amanda Kimmel
Rob Cesternino
Rob Mariano
Rupert Boneham
Sandra Diaz-Twine
Will Kirby
Yau-Man Chan
Yul Kwon
Russell Hantz
Rachel Reilly