I love both Survivor and Amazing Race. I have never missed an episode of Survivor. I think Survivor would be fun to do but I couldn't do it because I couldn't stand the sleeping conditions, bugs, rats, and being cold with rain. However, I would lose a lot of weight because they don't eat much and if they eat meat on the show it is fish/clams etc... and I don't like those. So that might be my strategy, keep me around people so I can hit a weight loss goal!
As for Amazing Race, I like that they travel around the world. The challenges are interesting and seem kind of fun and aren't as physical as Survivor for the most part. And as
@catmom46 said they get to sleep in hotels, and I too am a wuss (a hotel is camping for me). Maybe I'll be able to convince hubby to try out on year.