I put up a new leaderboard this evening for the most playtime (from January 21st on, so we just started recording today). The board will display the total number of hours and minutes played since today. I will have a few additional boards coming up in the next day or two. One will be for most gold in the bank (this will be compacted by account rather than player), one for most acheivements completed, and one for most bounties completed.
I will also look at starting to record some stats for merchants such as items crafted, ore dug etc..
I wish all players the best at getting to the top of each board. I will shoot out another update as the new boards become available.