From reading the comments... and from personal experience in MW... I think the real problem is NOT that the sides are unbalanced. That goes up and down depending on when you are on, who is on at the time, and what side they are on.
The real issues are the negative attitudes of some of the players that think they OWN the arena. People who think they can bully everyone into playing their way. People who whine and complain every time they get shot down, accuse others of cheating, playing unfair, and try to force their perception of reality on others. People who think they are better than everyone else in the arena.
In LW its easy to ignore them because there are so many people and so much going on. You dont hear the babble on 200 unless you actively turn it on. In MW... its a much smaller crowd, channel 1 in on by default, so its harder to ignore unless you squelch the channel. (which I often do).
But stop treating people like crap on all channel... or in PM's. Ok... you think you got HO'ed. Deal with it. You got vulched on the runway... get over it. You got 6 1000 lb bombs dropped on your tiger by a lancstuka. Whatever. Smile, salute, and then re-up and go kick his butt... or at least try. If you want to cry about it to your buddies on vox... fine... go ahead if they will listen to it. But dont start slinging mud on all channel. When I see it... I just squelch them anyway. I have even squelched people on my side who wont stop whining. I come here to fight... not to listen to someone cry about someone else who isnt "playing fair".
If someone is getting personal in their verbal attacks on you, or just being a total jackwagon... REPORT & SQUELCH. Done. People that get their voice and chat ability taken away a few times learn to keep their mouths shut. And if they dont... they wont be here much longer.
Yes... the sides do get unbalanced easily in MW. That is an easy fix. Either change sides, or stick around and more people will log on. But dont log off just because you got your hiney handed to you 3, or 4, or 5 times. Learn from it. But it's ridiculous to think that someone should have to change sides every 15 minutes to find a good fight. I have seen fights go on for hours in MW... with fairly even sides. A few leave... and few more come in.
If a group is rolling undefended bases... either go fight them... or let them do it... who cares? They WILL get bored. And if they are taking bases that are being defended... join in the fight. Make them work for it.
I personally enjoy taking bases. Not because I get to shoot at buildings. Not because I get perks for it. But because 1) I get to work as part of a team towards a goal, and 2) the fights that arise over attacking and defending bases are the best ones out there. It beats a mindless furball over empty space any day of the week. If the attack succeeds... awesome. Re-up and go for another one and get ready to fight even harder for it. If it fails... thats fine too. Re-group and either come back with a better plan, or hit a different base while that one resets. But dont just attack bases for the sake of taking them... attack them for the fight that will hopefully come from those who dont want you to take it. I get disappointed if I am attacking a base and no one bothers to come defend. IT'S BORING!
Ok... that's all I have to say about that.