Cotton Bottom has changed ownership and gone through a major renovation. I've never been there.
Crown Burger is better than Apollo, hands down. Yeah, same menu, very similar almost every way, but Crown is clearly better. The Downtown OG Crown Burger location is also better than their other locations, maybe saving the Sugarhouse location. I'll take Astro over Apollo, but Crown is better than either. I think Apollo was better but they have clearly been acquired by some big organization and have become a corporate fast food joint that doesn't even make their own fry sauce on location. For anyone outside Utah, fry sauce may have originated at Arctic Circle, but it became mandatory with the Crown Burger, which is a Pastrami Burger. You are legally (I'm kidding) required to put fry sauce on your Crown Burger. The copycat places call their pastrami burger the Apollo Burger and the Astro Burger.