How do you even pick these people? Most posts, just at random? Just wondering.

I order the user list by number of posts and choose those I like....j/k

They were nominated by their peers during the month of December: http://gamrconnect.vgchartz.com/thread.php?id=150508

There was a nomination thread

Last round results were (+/- 1 or 2)
Kantor 139
Andrespetmonkey 123
Sal.Paradise 109
Twesterm 66
Tadpole 54

Ahhh, now I see.  I kept seeing round 1, round 2, etc so I was curious on what it was.  Well good job on the thread, keep it up 

Another tough round...

5p: LestAtDark (One of the few members that really goes to the beat of his own drum. Also loves Pokemon and participated in my top 50 event!)
4p: Nikkom (Another unique and memorable user. Really enjoy his thoughts and humor.)
3p: Kenology (An active user that contributes nicely to discussion. Also, dat avatar!)
2p: Pullus (I really don't see him as often as I used to. Still, I enjoy his take on things.)
1p: DGC (I feel bad, as he's a great member and a friend... but it feels like it's been forever since I've seen him...)

The actual numbers are (but you were right your results were +/- 1 or 2):

Kantor 139
Andrespetmonkey     125
Sal.Paradise 109
twesterm    67
TadpoleJackson 55

5p - NiKKoM
4p - Lestatdark
3p - Pullus_pardus
2p - Kenology
1p - dgc1808

5p - Kenology
4p - NiKKoM
3p - dgc1808
2p - LestatDark (post more!)
1p - Pullus_Pardus

5p - Lestatdark
4p - NiKKom
3p - Pullus_Pardus
2p - dgc1808
1p - Kenology