good choices, all of them were overhyped games when they first came out

i happened to have tried all but shaiya so imo...

cabal
pros: flashy skills, not too grindy
cons: ugly graphics, got boring for me pretty soon

sotnw
pros: one of the best looking f2p games, controlling 3 chars is a new idea, in game bot
cons: boring quests and pointless grind

rohan
pros: generic korean grinder
cons: generic korean grinder

2 moon
pros: good looking equips and skills at high level
cons: boring grind and quests

my conclusion: none of them worth spending time on but its ok to give them all a few mins if you have the time