Yeah, Belmont is the one right beside the tennis courts. Note however that there's also the tower and Balfour Flats, which are a lot older than the new buildings - you might end up in there.
On the other side of Hawkhill (the little cobbled road to the north, with the Sports Union on the other side) is the ever-newer Heathfield - same design basically as the new Belmont, but not fully finished yet. Will be when you arrive though.
There's also new halls being built just down Roseangle a bit, which are again the new design and are in with some fairly-newish flats, that's Seabraes.
Other than that, the only other one you'll really want to consider is West Park (Hall and Villas), and it's about a 20 minute walk from the uni.
So yeah, if you liked Belmont, I'd say put Heathfield as your first choice and it as your second. Only my opinion of course, if you liked Belmont that much, go for it.