I've used online ordering, pick-up in store for Burger King. The first time I was standing in line in store (about 10th in a line that wasn't moving) when i placed the order. When I clicked the button to say I was in store for pickup the order was quickly packaged (by the lady who was taking in store orders none the less) and I walked out with my order while still about 9th in the queue.
The 2nd time wasn't quite as impressive, but good enough to be something I'll do every time.