I don't usually use this forum to hype my blog, but I wrote a blog post in January all about this same martial arts/relationships analogy:
http://newbiedeshi.blogspot.com/2011...y-martial.html
I've got taekwondo, a hot little thing who's lots of fun but a little bit of an airhead and probably too young for me, and aikido, a less exciting, less glamourous girl who reads books without pictures and makes really god potato salad. Eventually I'm going to have to stop flirting with both and pick one.