Ok, Earl's is kind of whatever. The only reason I think it's thriving is because it's open 24/7 for those Vegas club rats( Guilty as charged...). Honestly, when you're in Vegas you're either not eating or need a quick meal. That's where Earl's comes in.
The sandwiches I dig most:
TUNA MELT W/ TABASCO OHAYYY!!!!
HOLIDAY TURKEY ( I don't think this is on the menu)
Also, it might be a quick meal, but be prepared to wait in line for that sandwich. Them breezies be crazy on the Earl's Sandwich hype!