As many others already said, it's weird to compare 2 games that aren't finished and in different progression-states right now.
If you want to do it anyway (with current versions), imo:
#2 Rust (#1 if you like crafting/building)
#3 DayZ mod
#5 DayZ Standalone
Honestly, a huge amount of players in both games are already comparing them.
Both developers have set a price for their games meaning people will spend money on them.
Since, I have played both I thought I would share my thoughts.
If I had played the others before I would have compared them as well.
I really look forward to trying 7 Days to Die.