A few things have been said comparing RIAA with ASCAP, and I agree that they are both the "industry" part we'd all like to eliminate or govern better.
so which one is worse?
IMHO ASCAP is worse because they deal in all the venues - The production and manufacturing, the retail markets and the public performance places (bars, restaurants, retail stores, concert venues, malls etc). They take cuts from every part of the line including the last in line, the establishments that offer music as a service to a consumer. If you're a small business owner, with a nightclub with DJs or bands or even a store that wants to play his local radio station over his PA, you might as well figure on spending a lot of money because surely you will have an ASCAP representative knocking on your door telling you you are required to pay an outrageous fee to a PO box somewhere in Kansas. They'll bully you for months then weeks then days and threaten you with lawsuits and send you legitimate looking licensing pamphlets with absolutely no pricing and very little information about the laws or levels or types of licensing. You'll get the same info when dealing direct with ASCAP (the ONLY public point of contact direct to ASCAP is ONLY through their website- of which is also vague and semi-threatning). You'll get ink-jet printed price-sheets handed or mailed to you by these ASCAP representatives. Haggling will get you better prices, to which RED FLAGS are customary. If you do not pay, the bullying continues, lawsuits are threatened, youre forced to feel obligated to pay for something you have no idea is even a tangible item or not. If you're a small business owner, you are only dealing with the representative, the next level up is an ASCAP lawyer. Your lawyer will most likely say they have a legal right to demand the money from you, neither you nor any combined effort would be able to survive an ASCAP lawsuit.
You may be bullied also by your local amusement provider (the company that provides jukeboxes and pool tables for rent).
-- my sig had an Aerosmith lyric in it, but I was forced to remove it or pay a licensing fee.