Blingbling- (nice username btw)
I've flown World Biz to Frankfurt, but not to London. PTVs in every seat, US Major-leading 60" seat pitch, and revamped (inherently better) food choices await you on your DC-10-30. Seats are almost sleeper-style, if you've seen the new commercial that's getting heavy airplay on both Fox networks.
I assume you're flying SJC-MSP-LGW...If so, then look for an A320 to MSP with meal service (all flights over 90 minutes get meal service) and (if you're very lucky) drop-down TV screens. Flying time- about 7 hours MSP-LGW, and 3 SJC-MSP. Post here if you have any more questions.
Create your own luck.