I'll be vacationing in NYC & want to nosh my way through the neighborhoods. The plan is to take a cab from LGA to a nearby neighborhood before going to Manhattan (our luggage in very minimal). We've never been to Astoria or Jackson Heights. What are the different types of restaurants in each? What are the differences between the neighborhoods? Why would someone go to one over the other? We'll be there in the afternoon during the week, want a big bang for our buck, and love all types of food (we're adventurous). Any tips are appreciated!