i fly this route a few times a year. the in flight experience on B6 is better due to the free wifi and sat TV. HOWEVER, they seem to always be late when i fly. maybe it's a personal thing. but i've been flying DL recently and they are almost always on time. also, now that i have the amex platinum i fly out of LGA to use the centurion lounge. i heard they were going to move it to after security, but not sure of the status there