I think it was one of the most impressive dunks I've ever seen given how far away from the basket he was went he went airborne, that he went over another player, and how high he was.
Very impressive.
On Big Ten Tonight (last night) it was voted Big 10's #2 play of the week. Probably should have been #1, as #1 was pretty lame (Brandon Minor TD run vs. Purdue).
On the Big Ten Network site, there's a video of the top ten plays that includes Rodney's dunk at number 2, as SS pointed out. It's great quality. Well worth a look, if all you've seen is the youtube.