I also bought some Tezzies (meh...) and am glad, that you share my impression of the platform.

BTW:
You forgot NEO (formerly Antshares) in your listing at the end.
While Qtum is a straight-forward ethereum fork promoted in China with great marketing - NEO is another smart contracts blockchain platform trying to build their own VM originating in China.

My 2 cents on EOS: https://steemit.com/cryptocurrency/@fluffycat/eos-when-to-buy-and-why