Well here are the numbers from Tnet. You can get this info from the bottom of just about any forum out there.
Threads: 414,734, Posts: 4,203,994, Members: 91,821
There are currently 2436 users online. 281 members and 2155 guests
And the numbers from here:
Threads: 192,233, Posts: 2,195,929, Members: 39,089
Currently Active Users: 677 (165 members and 512 guests)
I spend more time on Tnet because it is much more active and covers a higher variety of topics. I still like it very much here though as well. One thing I notice a lot is the duplication of posts between the 2 sites. The more active posters put the same posts on both forums.