American cheese is the standard and rarely is another cheese appropriate due to the flavor and melting capabilities.
Bacon is a decent topping. The picture posted looks like the Tony's BLT in Birch Run, Michigan, with 1 pound of bacon per sandwich.
Neither burger pictured speaks to me, since I've come to "less is more" in my burger life.
Mayo is the preferred condiment. And some type of onion (raw, grilled, sautéed, caramelized) is virtually a must.
Mustard, if the profile fits. Ketchup for backyard burgers or dressed up for when Michael Symon's original Lolita burger fits the bill.
And the Oklahoma fried onion burger is a game changer. Simple to the point where the sum is better than the parts. I rarely deviate from this style in the kitchen at home (and I created the burger of the day for about 1.5 years at a tapas restaurant, so I have "chops").