My personal favorites are the Renaissance, the Sheraton Suites or the Embassy Suites, but all of the hotels in that area seem fine.
We usually just do a Priceline bid for a 3* hotel in the MCO zone....you will wind up at either Sheraton Suites, Renaissance, Marriot, Holiday Inn Select or the Hyatt inside the airport. All are very nice and have nice pool areas (not themed, but large, clean and rarely used), all also provide complimentary airport shuttle service 24/7 so if you want to send your spouse to return your rental car the night before while you swim with the kids you can take the shuttle to the airport in the AM and get dropped off right at the check in entrance so you don't have to lug kids and luggage from the garage. A bid of $50 to 55 is usually more than enough to get a very nice room with a good pool and shuttle service.