Quality care with most doctors included in the plan is a key point we want. I have looked at programs that have such a limited number of doctors and specialists that it makes tem undesirable.
Regarding Dental. There generally is a year wait for periodontal services, but not standard dental services like exams, cleanings, extractions, fillings, crowns etc.
Even though the wait for more extensive services is a pain in the ass (or teeth) after you get past that period dental converage can save you thousands on corrective and cosmetic procedures.