What's your favourite features of Skyblock and why?

[ComplexProduction]

So, I've played skyblock for a while now and I've noticed that each server I've played/worked on all have their own different features. However, I was wondering what others favourite features are.

I personally like the idea of PvE, and Cobblecubes but other's will have different opinions and I'm curious to know!

 

[Collision]

I'm old school so I like nothing more than just a warp shop, grinders, crates, and 1 basic island

 

[XER0GRAVITY]

I like to keep it classic, modern SkyBlock has become too complicated.

 

[VytherSMP]

The skyblock part