Row 6 on the A319/A320 is the best in E+ by far...if you are at the window, you can easily get up to go to the restroom without disturbing those in 6BC. Row 9 on the 757 is awesome although you do have people that tend to congregate in this area. I avoid the exit rows over the wing because in the event that I do want to look out the window, I prefer not to be staring at a wing.