I prefer the CT because of gameplay, but even moreso because of the people who are regulars there. The CT "community" is so much smaller that most folks know each other and battles dont become personal, at least not for me. For example, in the MA if you get a kill that person more often than not comes up on Ch1 and starts with the "top 10 whines" list, IE your a cheater, your a vulcher, your a furball tard, whatever. In the CT, not always, but more often than not, you get a " sir, good fight".
Yeah, both sides have whiners, yeah both sides gangbang and vulch, yeah both sides have a sprinkling of jerks, yeah both sides do some trash talking, but the frequency and the level of hate is much, much lower than the MA.
Add to that the, IMO, better quality of air to air fights and the ability to fly/learn early war planes and the CT is where I spend 99% of my AH time.