About 9 months ago, we had a corporate edict to fly United across the pond - apparently a "great deal with United has been negotiated". I replied to management warning them that this wouldn't work. "Friends don't let their friends fly United".
It didn't - a senior team flew to the US on UA and complained bitterly about how poor the seats were, how bad the service was, and that they wanted to spend 14 hours on a plane with part of that asleep, not in a seat that isn't really designed for sleeping.
We now pay QF's extortionate rates to the US - and we get what we pay for.
And the cheap price you get on UA - you get what you pay for.
If you want a cheap airfare across the pond, consider earlier advice about a DCIR22, or look at going on FJ via NAN - I was pretty impressed with FJ on a recent flight.