I am not sure about size of studios, but 1 and 2 bedroom villas are most definitely larger than VWL and BWV. I think the studios are shaped differently - they are longer and more narrow at VWL and BWV, and OKW studios have 2 queen beds only instead of 1 queen and a sofa bed. Some prefer the sofa and 1 bed setup as opposed to the 2 beds. Makes for more room during the day, I suppose. If your plans in February have you staying in one of the larger units, it will be extremely hard to *ever* stay in a studio again! OKW is wonderful - my kids actually prefer it to BWV, although some will argue with this. I really feel like I am on vacation when I am at OKW. Since this is your first trip there, just try to remember that you will be back many times before 2042, so relax and enjoy!!