I went through a spray/spritz phase. There's only one thing I still spray/spritz; a double smoked ham, and with that, I use apple cider and simple syrup to kind of candy coat the outside.
I tried all kinds of sprays with liquor, juice, vinegars, (white/apple/balsamic), and broths. The liquor was better saved for drinking. I didn't notice much difference in flavor from the rest. Lots of folks spray and spritz, though. My tastebuds could just be crusty.