shana, my advice would be to stick with your Vista Suite, for several reasons:
1. You only have a neighbor on one side.
2. Less chance of smoke wafting into your balcony and cabin in a aft cabin.
3. Your balcony is covered from above; the Penthouse Suite balconies are partially uncovered from above.
4. The view down from your balcony is directly into the sea; the Penthouse Suite balconies look directly down into the Dolphin Deck minii-suite balconies.
I'm posting a photo of a balcony in each catagory. If you click on the photo, it will take you to Webshots, where there will be more photos of suites in each catagory. I have to go back to Webshots to copy the photos, and will put them in my next post.