Dmitriy,
Score? 

What is a high score but a player who has played many games? 
 

Jesse has balanced the teams out fairly well if you look at the 
win/loss percentages of the players:
Pawel .593
Boisforas .220
Skryabin .618 (1.00 in the last 6 months of play)
H S L .528
Von Earlmann .334
kernel t .566
Team A: Win/Loss of .477
Team B: Win?loss of .476
I am not a big fan of ELO, so I only looked at win/loss. 

It's not about how many you played. It is more about how many wins (win/loss) and who you played (if you use ELO)?  On average, ELO means that Team B simply fought tougher opponents. 
 
 
HSL