My wife is the bestest:
1) She takes care of the house and kids and is the best Mom I've ever met.
2) She loves scifi and fantasy. She's seen more STNG than I have and we really like the new Battlestar Galactica series. She got me Assimov's foundation series, because I hadn't read it and she had, she knew I'd like it. Etc.
3) We have an excellent and completely fulfilling sexual relationship
4) She's my best friend
5) Her family rocks, I love them too.
6) She loves science, has her degree in biology, will be going back for her masters soon. Is an awesome 'A' average student, and wants to teach college so that our kids can go for free.
I don't know, it's pretty much everything about her, she's just great.