So I'll share my favorite experiences too:
1. AltspaceVR
By far my favorite VR experience so far. Meeting people and talking to them in this application is an incredible immersive experience. The natural looking head-movement of the avatars makes you immediately believe that you are indeed talking to real people. Imagine scenes where people are standing together in a group chatting around, and you step into the group, everybody looks at you, they ask you something etc. etc. etc.
People who never tried this tend to underestimate the huge amount of subconscious interpersonal comunication which is transported here, which never was transported in media we had before. It's not that easy to describe because alot of this stuff takes place on a subconscious level.
But what we have here is really something completely new and it surely will be a huge improvement to anything we had before very very soon.
2. Evolution of the Verse - Vrse
This is a video located in a video-application called Vrse. It has artistic value, showing the cycle of death and birth. But the more important part is that it's partially CGI-Pre rendered. Content like that is a rare thing at moment on the Gear device. We have alot of content right now which is captured by Camera. But Camera-captured content is not nearly as immersive as computer generated content is.
The end-scene shows very dark, almost invisible background combined which one huge CG-Object. The depth and immersivity of this scene is absolutly stunning and never reached by non-cg content.
3. Tana Pura
This pre rendered CG-animation won an award in 2015 and is definitly part of the highest quality video-content we can get right now. Unlike evolution of the verse it doesn't use captured 360° video content for the background, but seems to consist fully out of CG-elements. Cg-animations are totaly the way to go right now when it comes to video-content. Check this out.
You need SideloadVR to get this running.
4. Colosse, Rose, Invasion, Jurassic World
Colosse and Rose are live-rendered cg content, which is made in game engines and is presented as a movie. Invasion and Jurassic World are using a combination of standard 360° background and CG-objects in the foreground similar to Evolution of the Verse.
5. Milk VR Videos: "Little Door Gods: Divine Tours" & "Little Door gods - Gateway"
Two very well made Videos, worth to check out.
I found that most of the 360° video-content right now is very low quality because it's camera captured. I don't know how this changes in future but right now CG-rendered content is the way to go. Due to limits to our smartphone devices we have only access to pre-rendered content most of the times on the GearVR. Whereas Rift/Vive often live-render their presented CG content.