My 2018 wish:

I wish Amazon and Google would end their childish fight so that i can finally stream Amazon Prime to my TV using Chromecast.

I wish google would stop all its fights and die a quick and painfull death.

Same, so I don't have to sideload a yt apk on my fire tv.

Not tried it with prime video (don't have prime). But you can cast any webpage from chrome by right clicking. I do this with other webpage that don't have casting built into their default player.

@Codex404 totally agree, they started their childish fights, first against ms and now against amazon... But most of people stuck in 90s and still complain about ms, but didn't notice google behavior... When theh will, will be tooo late