Thanks everyone!
I know, I know - I always try to connect in Europe, but for the Z fare I am booking, getting the LH FRA or MUC-LAX non-stop isn't avail.
So my options are flying UA FRA-LAX non-stop or LH FRA-DEN-LAX.
Of those two options, I think I prefer flying LH C as opposed to UA. They actually both get into LA at the same time, so I am basing my decision on comfort, food, IFE and general service (of which I prefer LH).
Or am I crazy?