I have to say my best was definitely when I was in cornwall a few years back sitting on the cliff top near newquay watching the sun sink to the west, I used to have this huge fascination with sunsets, as I still do when my life gets tough. (though I'll still take pictures of pretty awesome ones everyday if I got a good view then I'll snap away with any camera to hand) The fascination was simply because no matter how tough life was for me at that point if i saw the sun set then I had managed another day, and the next could be better.