The only reality shows I watch are the home improvement/decorating ones, also. (but not the makeover ones, because the hosts irritate me.) I am addicted to Changing Rooms and Trading Spaces, and will also watch While You Were Out, Room Rivals and Garden Rivals, Ground Force, etc.
I've never seen Survivor! I watched the last five minutes of it, once, to kill time waiting for a program that was on after it. I wasn't hooked. And I've never seen even a minute of American Idol. If I knew when it was on, I might check it out just to see what the fuss is about, but I'm sure I woudn't get hooked into it, either. Any show where people are habitually mean to other people is just not my thing.