We got a Kaiser HSA. If you live near a Kaiser hospital they're a pretty good deal. I don't have any kids, but they seem like they're much more family friendly than some of the other low cost HSAs. They cover full maternity, and cover a few well checkups a year for kids, and one for adults without hitting your deductible.
Kaiser tends to get ranked FAR ahead of all other health insurance / health provider companies in the consumer surveys I've seen - and their rates tend to be very competitive. Your broker may not quote Kaiser rates, though - you might have to inquire directly.
I especially liked how clear their pricing was. There's a place on their website where you can look up exactly how much each procedure costs. I'd never seen anything like that before. It made it easy to weigh the HSA vs traditional plans.
