If you do choose WS, I highly suggest staying on the garden side because their balconies are quite larger (which seems important to you) than the beach side. The beach side balconies can sometimes feel a lil cramped because of the room AC unit that's on the balcony. SO I think you'd be more than happy with the garden side balcony as compared to IAW. The real question is, do you care to wander every night for your dinner? I think that may be more important since, the restaurant at WS closes by 3pm (you can always get a drink there though since the bar is usually open til midnight).
