It's not an easy choice, some of the witnesses (most of them) are just here to make money, too. It's got a flavour of brand loyalty to it or something.
Some people are voting for old witnesses (top guys active and not running 22.5) to see if we can ignore Steemit. I'm not saying they deserve it, but it seems better to me than the alternative for the next week or so.
I think if that Steemitblog announced a change to the power down happens soon, you won't have to wait long to power down, but I hope you have access to an exchange that isn't 'frozen' and get out while you can. I don't need the money, so I'll just wait it out until things are clear. I'm not going to get trapped with a Tron pump and dump though.
I'm going to wait a few more weeks until this plays out to make my decision. I'm not migrating to Tron, I'll try something else if that happens.