[Baron Grazic]

As for the Longest games - there are 2 contenders that I can think of :-

5 Seas of Stability - Started 21 Sept 2001 and finished on PBW on Dec 2003, when 5 people dropped out when 1 alliance was almost crushed. Their where still a dozen players left.

P&N on PBW, take 2 - is the second one. This game start well before Sept 2002 and the game is still going. I don't know when it started however.

Fyron has claimed to have been in the most games, and no-one has contradicted him.

The shortest games would have to be KOTH games.
My first Koth game (Non-Gold, pre Ratings thankfully) was 8 turns, and that was my complete annialation, including the destruction of my Home World.