Be at In-N-Out Burgers around 9 AM and wait for it to arrive. I have seen it myself several times ^
Also, you get a pretty good view of 2x A380 parked at the mid-field complex with 2 or 3 more QF 747 from about 11 AM to 3 PM - you can get a pretty good view from Westchester Parkway, about half a mile west of In-N-Out Burger. During the A380 grounding, I even saw 3x A380 at the same time, parked side by side.