I have been on
bidvertiser for quite a long time and it seems they have certain problems. Unlike google, their ads are not content sensitive - you have to choose your own category for ads to display on your site. their payment, ok, i don't argue about that since you can make quick cas
But mind you, bidvertiser is more like pay per action rather than pay per click meaning if the advertiser wants leads for his site and you the publisher manage to catch a click from your site, you are not going to get the pay.
I think
adbrite is ok in a sense that, many of their compensation plan is based on cpm and cpc. even you can earn money without a click and their payout is ok. But still, I think
adsense is the best.