Customize YouTube to work exactly the way you want it to.
I'm using this all the time myself. There is no login to YouTube required and it supports adding subscriptions and doing everything important you can do on YouTube.
My lg tv is jailbroken so I have the ad blocked version of YouTube on it, but I was on my Chromecast with Google tv yesterday and decided to go back to the regular YouTube app since I was there.
I was watching a video of 20 minutes in length, and got one 30 second ad at the start; ok fine.
After 4 minutes, they decided to show me a 50 second unskippable ad.
I backed out of the video, and deleted the regular app.