If there are any leagues out there that use both I'd love to join. I really like the feeling of community that live sims offer, and I also really like the depth that BOSI provides for leagues. I know it's tough, but there has to be somebody out there doing both. If it came down to a choice, I'd prefer a live sim league.
Hookslide4@yahoo.com is my contact info, or Hookslide4 is also my AIM name.