We stayed at the Hyatt Regency Mission Bay for our anniversary about a year ago. We really liked it. It's not the cheapest place around but it was very nice. We had a view of the marina which was nice. They had a fun looking pool with water slide. The best part was they have a water taxi that takes you to their own private entrance to sea world. You pay extra for the water taxi but it was fun taking a boat to the park plus for just the 2 of us it wasn't that much more than paying for parking. The restaurant also had a good breakfast but was pricey.