Yes, I believe the flavors would be very different. Midnight wheat contributes very little flavor, just a mild roast when used in small amonts. Chocolate wheat is pretty comparable to chocolate malt. Midnight wheat is also much much darker than chocolate or caramel wheat.
I can't be arsed to keep up this list of what's in the fermenters, but hey, check out the cool brewery I own!
twitter.com/2kidsbrewing .. facebook.com/2kidsbrewing .. 2kidsbrewing.com