Easiest Private Server to setup/run

Been arguing with a friend for a while now about which is the easiest private server to run.

I figure its Ragnarok, he is sure its Wow.
(yes, we have both worked on both)

Got me wondering about other people's experiences

So what do you consider the easiest?

Cabal online and mu :D

Lineage 2, for sure.

maplestory
install sql software, download repack, restore database, one click run the server, connect with a bat file and the retail client

Ragnarok and WoW are both not "easy" to setup.
They require you to obtain the actual client and use the data files to run the server.
I'd say Helbreath is the easiest.
Download server files, change IPs in configs and launch server.

Runescape :D

Ragnaok "WAS" the the easiest to setup but then the clients nowadays are too complicated and the server files are well too big so yeah you could say it's not easy anymore.