I'd have to go with the more aggressive/preventative center. The "sutter" reccommendations seem very similar to what we've experienced. Emily has been on Pulmozyme for a long time, probably since she was about a year old. Like Heather's doc, our doc was quick to put her on it after I brought it up. I think that the fact that Sutter is surprised at the low doseage of enzyme is telling, too. They are surprised because they have a higher standard of care, in my opinion.
It's not an easy decision, and you have so many factors to consider. Is it possible for both clinics to give you referrals - families who use them that you can speak frankly to? Can't hurt to ask!
Good luck, and keep us posted.