I played back in 2005-2006 (KBiz). Back then things were pretty active. I'm having trouble remembering how many people might have been on each side at a time. I was curious as to what kind of range there was for participation for a side now. Does 40 at low points up to 120 high points sound reasonable? I know participation can vary greatly subject to time of day.
During "peak" hours it isn't rare to have 6-700+ players spread between the two LW arenas with one generally @ 100 more than the other. Add the other arenas in and 800+ happens. (I forget what HiTech said once was the "most" we had online at a time)
300-400 in Orange and 200-300 in Blue being fairly "normal".
Per. side is deceptive as usually the arenas are out of balance with one side having a ton more in one arena and vastly out numbered in the other.
150 on one side is not that unusual.
(come on Snailman... I just KNOW you got a pie chart for this!)