If you think your grilled hamburger recipe is the max, then visit Sutter where they are having a burger contest with a $50,000 prize for first place.
Sutter is a wine company, so you'll have to sign in as age 21 or over first. Then, click around. You'll see the contest details.
They have a traditional meat category and one for alternative burgers.
Be sure to read the tips and hints. It's easy to get bumped from a contest for little things like not sending the information in the right format.
I do think my grilled hamburgers would be hard to beat. But, they are put together with very basic items that you probably have on hand. Contest winning burgers are usually more complex as far as the ingredients. If you do want a super burger though and don't want to spend loads of time, try out my recipe. They sure fly off the grill here.