Based on your description it seems Hilton's Embassy Suites brand is tailor made for your family. Every room is a suite, with a door that closes to separate the bedroom from the living room with pull-out sofa. The four of you could squeeze into one suite instead of having to pay for two rooms. Moreover, The included breakfast buffet offers plenty of choices, enough to save easily $50/day that a family of four could otherwise spend at a simple diner.