1) Paddock
2) Near pool
If you call to put the request in, they may let you combine the two requests as near Paddock pool. There are some buildings in Paddock that are a bit of a walk from the pool, so just being in Paddock will not necessarily mean you're close to the pool.
For what it's worth, I really wanted to be near the Paddock pool as well, but didn't really want to be in some of the further Paddock buildings. I decided that being near any pool was most important and would put me in a good location so "near pool" was my only request. We ended up being placed in Grandstand in the building that's both right next to the pool and closest to the Springs/main hub section. Although the pool didn't have a slide and the cool kiddie section that Paddock has, it was also less crowded and the kids still had a blast in the fountain play area they have. There's also a drink station and it was a short walk to the main pool, restaurant, quick service, etc. Also being at Grandstand meant we always had a seat on the bus when we went to the parks and were the first ones dropped off at the resort.
I'm not trying to change your mind or anything, just explaining why we put our request the way we did and how it worked out for us, even though Grandstand wouldn't have been my first choice.