<comment class='devils-advocate'/>

From what it seems like, most large companies tend to use the same few arbitration firms. JAMS and AAA come up often in the contracts I've read. How often does this "arbitrator shopping" actually happen? It's a complaint I hear often, but little in the way of data to support it.

I have seen data to suggest that arbitrators rule often in the favor of the companies, but that could be a result of more people raising bullshit claims since it's significantly easier to do so.