I was just watching MLB Network's "Biggest Blasts of the Year". At 474 feet, our beloved rookie HOF'er (shut up) crushed the 3rd longest home run to be hit all year with his first swing ever in the major leagues. That's pretty freaking awesome, especially for a 20 year old who has yet to reach his power prime and whose swing "lacks the uppercut necessary to be a perennial 30+ HR hitter". Pffftttttt....I had to make this a post (sorry if it's already been mentioned) because I still get goosebumps every time I see the replay. Chip's call was pretty cool too, as much as he sucks he got this one right. 

Also of note, Jim Thome was peppered ALL OVER the list. Every time I looked up he was trotting around the bases. He hit the 2nd longest HR of the year as well. Dude can still hit the ball a LONG way.

Edit: Josh Hamilton was number 1 on the list at 485 ft.