So far, in this year’s London visit, James Corden is 2 for 2. Monday, he had Michelle Obama stealing the show as an aggressive, taunting dodgeball captain. And last night, he and Chris Hemsworth played dueling waiters, trying to prove which of them could give better service as a posh London restaurant. Spoiler Alert: Hemsworth won, handily. When he takes you to your table, he really takes you to your table…