330's in business are super comfortable, with excellent IFE, and seating, with probably the best Business class seat (and service) on an american carrier. However, the new NW
business seating is still leagues behind BA
's soon to be superceeded Club World Flatbeds, and their service.
Ive yet to board a BA
767 with Flatbeds, so cant make a comparison, sorry. But having flown BA
business on the 777 I'd choose BA
based on that comparison.
You are 100 times more likely to catch a cold on a flight than an average person!