I like that isle of thunder has the pvp daily option and i liked the karasang landfall dailies, mostly because the story progression with them was done really well. Timeless isle seems utterly pointless to me and there is no epic story to go along with it.
I hated firelands dailies but I loved the story that you unraveled by doing them, so I did them any way...once. Timeless isle I only go to for killing celestials once a week. I never see anyone kill Ordos, and I am on a full pop server... so he's useless. Timeless isle has no direction, no plot and it's boring. Also calling enemies that spawn every hour "rare" is absurd. "Rare" has no meaning any more.