I do think that powder coat, done right, is practically indestructible. For jigs, I think it is the only way to go, since they will get bounced and dragged through rocks.
But, having said that, I love how I can prime my spinnerbait heads with self-etching primer, and then paint them with the same Createx baits that I use for my crankbaits. The clear nail polish top coats them just fine.
I've never had the paint fail on one yet, and I've been doing it for more than five years.