Your answer is from March 26, 2009.
Unless you can exactly remember that date, you have to go back to the update before March 25th to February 8: viewtopic.php?f=89&t=56103&hilit=Hall+of+Fame&start=45#p1878813
In which case the answer is Optimus Prime at 4,538.
As mentioned, all answers can be found in the Dispatch; here.
The same issue lies with this answer. That dispatch went out on March 30. As I was the one that updated those fun little stats in the Hall of Fame, there was no way they could have gotten that information BEFORE I posted it. I would immediately publish the data as I had it, I never did what IcePack does with the F400 ("The next F400 is published in the dispatch", etc).
Anyway, I'm not going to make a scene about it, because there is ambiguity in dates posted and dates published with the dispatch.