In terms of being a publisher, it really depends on your website. I've had adsense sites that perform better than adbrite sites, yet i've also had the opposite. As for PPC marketing though adbrite sucks, i mean i've made quite a lot of money from running ads on adbrite, but i bet a large percentage of that was lost due to click fraud.
adsense is the best, problem is, they ban people so easily as easy as we pee on the wall, adbrite only cut the payment from the clicks they think not legit, adsense will just ban you straight away, you will never live in peace using adsense
Probably the best thing for you to do would be to split test between the two, then you'll know for sure.
we cannot compare any other network to adsense.. but if you are banned from adsense alternate is adbrite or bidvertiser. adbrote clearly shows the no of impression, clicks, CPC and all. AdBrite is at steady growth..