OK, let's get serious. Most on here have travelled quite a bit.
Best overall (don't even try to top it) = Mama Dips, Chapel Hill, NC
Best Barbeque Ribs = Mr. Jims Beef, Los Angeles (you need no teef to eat his beef)
Best Hot Dog = Hot Diggity Dog, Chicago, IL
Best Burger = Fatburger, Orange Ave, Pasadena, CA
Best Chopped BBQ = Lexington BBQ, Lexington, NC (serve 3 tons per week)
Best Oysters = Pelican Landing, Cocoa Bch, FL
Best Shrimp = Bennet's Calabash Seafood, Calabash, SC
Best Chicken = Aunt Kizzie's Back Porch, Marina Del Rey, CA
Best Pizza = Pizza Show, Hawthorne Blvd, Los Angeles (2 Boston brothers)
Best Catfish = Catfish Place, St. Cloud Fl on Hiway 192
Best Calamari = Eastside Fish and Chips, Alice Spings, Aus (Thai cook)
Best Moreton Bay Bugs = Bugs Seafood Diner, Contarf, Aus
Best Pad Thai = Street vendors on Yarowat Rd, Bangkok
Best Pork Sandwich = Bayhorse Inn, Burn Bridge, Yorkshire, England
Best Onion Rings = Jerry's , Torrance Blvd, Los Angeles (served in brown paper bag)
Best Fish and Chips = Bizzy Lizzy's, Skipton, N. Yorks, England
Best Marianted Chicken Feet = Kam Lok Rest., Nathan Rd. , Hong Kong
Best Italian Beef = Portillo's, Ontario St. Chicago, Il
Best Corned Beef = Ashkanaz Deli, Oak St. Chicago, IL
Best Reuben = Somewhere in NYC near 50th and ?
Best Spaghetti = little shop in corner at Trevi Fountain in Rome. Opposite church.
Best Balti = The Balti House, two blocks down Gray Chapel, from Kings Cross, Lon
Best Dim Sum = You's Dim Sum, Stockton St., San Francisco.
Best Vietnamese = Two block up from Ecole Militare, and Champs de Mars.
Best Prime Rib = Bully's, La Jolla, CA (you will never find better, never!)
Best Big Cheeseburer = Green Flash, Pacific Beach, CA
Best Cheesesteak = Grunnions, Sepulveda, Los Angeles
Best Bouillabaisse = St. George Hotel, DC
Best Chili Crab = Phoenix Rest., London near Baker St museum of some detective
Best Tea = Betty's , Parliament St. Harrogate, England
Best Bratwurst = Viktulian Markt, Munich, Germany
Best Beer = Killian Red on draft at the Rat and Parrot
Best Reindeer = Gondolen, Stockholm
Best Grilled Cheese = Charbroiler Grill, Melbourne, FL
Best Chinese Buffet = China Inn, McPherson Church Rd., Fayetteville, NC
Best Breakfast = Bob's Diner, Polk St. San Francisco (old time waitress)
Best Deli = Moishe's Pippic, San Francisco
These are all places I've eaten and would recommend to anyone.