The pizza the Spoodles pizza window is okay. I personally prefer WGP Cafe for pizza when at WDW. Regarding the "atmosphere" for eating pizza while on the BW, I will agree that the view is beautiful, however it is difficult to concentrate on the view when you are battling the birds for your food. If you decide to eat outside here be prepared to guard your pizza with your life as those birds are tenacious little rascals! 
