Join Date: Oct 2004
Location: MUC/LAX/SMV
Programs: LH, UA, BD, AA, NW, FB, NH, AC, Sixt, Hertz, Avis, *W, HH, Marriott, PC, Leaders Club, AMEX
Posts: 12,406
As LH still operates SFO-FRA with old-stlye C class seats, go for United! The last time I took UA on this route (connecting from SYD), they had a nice 777 with C+ seating.
Or even better, fly SFO-MUC on LH and connect from there - definitely the best option, with new C seats (beds) and wireless FlyNet broadband internet access. Most of the time, food and inflight service also tend to be better on LH than on UA (in C class).