If butter and maple syrup are my only condiments, then I'd choose French toast every time. HOWEVER...
I really prefer my French toast with a little icing or powdered sugar, if possible.
But I also LOVE waffles topped with fresh berries and/or a fresh fruit syrup.
Don't care much for typical pancakes (seems like usually they taste just like a waffle, but get soggier faster). But once I had pancakes infused with crushed macadamia nuts and fresh coconut, and it was one of the tastiest things I've ever had. Ever. Really.
Essentially, I think pancakes and waffles need a little more than just maple syrup to really live up to their potential.
So, when presented with the option between pancakes, waffles, and French toast I usually base my decision on how its served. All three can be delicious.