Dayz is massively different to when it first came out
Dayz all the way
I'd still rate the day z mod for arma 2 over dayz standalone any day. Epoch and overpoch add even more to the mix. I've spent so many hours with a group of my friends playing epoch on the mod. It's a lot of fun. Standalone just doesn't seem to cut it for me.
That's because BiS haven't done any notable work on or updated DayZ since release a year and a half ago.
Forever Guff.
real life
Project Zomboid.