I didn't vote in this poll because I don't identify with any of the proposed choices. Recording where recording isn't allowed can be a theft of service, and I don't wish to help people do that. But selfishly, I'd like to know what works well and what doesn't. It's a different set of technical problems from the ones I usually face.
Or maybe not. I have this one client for whom I'm the official recording engineer for their performing organization, but they severely hate having microphones that the audience can see. I've had to struggle at every concert for years now to get my microphones into places where they'll do any good at all. If I could sneak them into a hat or a jacket or the frames of my eyeglasses and get a good sound, I would.