We've tested Sling TV, PlayStation Vue, and YouTube TV since cutting the cord. I definitely like YouTube the best. We have a Hulu subscription, but haven't tried Hulu Live yet. I imagine it would be popular because Jaime and Audrey use Hulu more than other apps.
As for YouTube TV: First of all they offer a free month trial, where the others do a free week.
Second they have an app on my TV which is a great app and well supported.
Third the streaming on mobile devices works much better than the other apps.