Having just had a terrific stay at the LM Angkor a couple weeks ago, I would submit that the best time to see Angkor itself is right after sunrise. Most people leave for breakfast after the madness of the sunrise. This leaves the temple virtually empty. Coupled with warm, soft lighting, the environment made for terrific pictures. By the time we left a couple hours later -- around 9 or 9:30 -- the masses of tour buses were coming back.

I actually have to give a lot of credit to our hotel-arranged tour guide for knowing and avoiding the busy times at the various temples. We saw Ta Prohm around lunch-time and it was relatively uncrowded. Then went to Bayon in mid-to-late afternoon to catch the soft afternoon light on the stone faces. I would strongly recommend staying away from Bakheng Hill at sunset. It's a complete zoo and the actual sunset is likely nothing special for most well-traveled people on flyertalk. Try another spot with fewer people -- dealing with hordes of rude tourists who push and shove for their pictures really detracts from any enjoyment. We got there early and found a great spot, but ended up (along with the people around us) spending way too much time telling several Korean tour groups of teenagers to sit down as they obnoxiously walked right into our prized view.

As for the LM Angkor, I was pleasantly surprised with the level of service. Nice Plat upgrade to a suite, HK provided enough bottled water, concierge arranged all travel with little input, all arrangements were smooth and seamless -- all we had to do was show up. The property also had above-average spread for breakfast and well-apointed rooms. I do agree with a previous poster about mosquitos somehow getting into the room, despite employing the method of stuffing towels in the crack between the doors and the floor. Overall, a definite steal for 7k points.

One other note if you're planning a trip here -- be prepared for some pangs of guilt as you're likely to see naked children running around and living in tiny metal shacks only a few hundred yards from the property. Cambodia is still a very poor country for the masses, and very little revenue from temple admission tickets or visa fees goes to help the general population. Our guide explained that a private company splits the temple revenues with the government and little of that trickles down into infrastructure spending and other distributions to the general population. We decided the best way for us to help the general population was to tip well and donate small amounts but directly to people we saw.