Good time for total numbers in the CT are weekends, since your EST it won't be very hard finding people there in the afternoon/evening.
There are almost never and balanced numbers though, most of the time allies have alot more, sometimes as much as 3 times as many players.
Sometimes axis have more, not as often though. Just go in and fly whatever ya want, nobody will complain about you (unless you're in spit
![Wink ;)](http://bbs.hitechcreations.com/smf/Smileys/default/wink.gif)
). Haven't heard many whines about numbers online either.