why not just join both and see which one has offers that are better for you. edit: they both have great AMs and service so don't worry about that
Its depend on your niche or your site. which programs you want. Suppose you want dating programs which is available in copeac not in azoogle then go for copeac but if both have dating programs then see dating programs price, tracking(real time or late). I got a cheque from copeac. No experince with Azoogle.
Both are good, but I don't like directtrack much which is what Copeac uses. No idea what Azoogle uses, but I like their site much better so I use them.
join both then decide for yourself as i may favor azoogle for one reason you may come to find the other better for what u are doing.