I'm gonna make this post kinda short.
As you already know I have an account with TrafficVance.com and just the other day I got an account with MediaTraffic.com
Although they both supply PPV traffic they have some real differences in terms of the way they operate. I find that TrafficVance is more responsive when it comes to getting a new campaign and keywords/urls approved. You can almost get a new campaign approved 24/7.
The interface in TV is a lot easier to work with too because, it at least gives you an indication of what traffic is available for what keyword/url you are targeting and it doesn't take too long until traffic starts flowing.
On the whole I just find it a lot easier to navigate through.
Having said that I really only have just opened an account with MediaTraffic. But I am finding that the time difference between countries is a real hassle. Support is excellent in MediaTraffic when our hours cross over, and I am just in the process of testing out there traffic. So far it has been kinda slow.
The traffic at TrafficVance is great !
I have found big differences in volume of traffic between the two companies. TrafficVance seems to have more traffic than MediaTraffic, which seems odd because my understanding is that MediaTraffic has a bigger pool of people to advertise to.
Anyway, it might be due to the niche I have picked. (i.e.) There's not much traffic in MT for the niche I am promoting to.
PS: So far I am loving PPV traffic and I am making a profit. But there are some inconsistencies of conversions that have be baffled. Only time will tell.