My kids recommend Sea World and so do we. our kids are a bit older (9and4) but we have lived here for 4 years. Sea world is alot of fun and neat stuff. Only downfall is that you have to carry your little one through some exhibits( no strollers allowed inside) But, nicer than Busch Gardens. My kids also loved Universal due to Barney (up close and personal) and alot more stuff for little ones. We took our oldest to SeaWorld for the 1st time when he was 9mths old. He loved it.
Feel free to email me if you need anymore tips on the area