Caribbean Beach Room Choices

While understanding that it's not a guarantee, we'd like to request a building location for our one night stay at the Caribbean Beach. We are arriving on Saturday, July 24th and staying one night before transferring (hopefully) to the Polynesian. We plan to arrive via Mickey's Magical Express, eating diner at Centertown Market, then taking the Skyliner to Hollywood Studios the next morning. We have 3 adults and a 1, 3 & 6 year old so we'd like to avoid too much walking before we even get to the park. Does anyone have a suggestion for a building or area request?