Well, I have stayed at both the Swan and the BCV, and so have utilized the Grotto pool and SAB. I have a DS, now 11, who has also experienced both resorts/pools. Although I have no doubt he would tell you that SAB is far superior to the Grotto pool (his words would be something like: "Dude, it's totally sweet"), I know he would also tell you that he enjoyed his time at the Grotto pool too. The Grotto pool is quite large, and has a pool slide. I personally thought the water was a little cool, and have read other posts that said the same thing. I can understand the pull for you to stay at the Swan, especially if you can get a teacher's discount. I stayed there on the government discount, and would do so again in a heartbeat. The Swan is just a wonderful resort, and the renovated rooms with their heavenly beds are so beautiful. Since you have already been to the BC, I would really encourage you to give the Swan a try, and compare the two resorts for yourself.