I currently have a 3000+CP Dragonite, 87% IVS
with SW/DC.
Its the only one i have...and most likely will have for awhile, i very rarely find dratinis. SO i figured what the hell and just powered it to lvl 30.
I kinda wish it was stronger, but its not bad on either as it sits at a B rank on both. It fits more for defense though due to Steel wing, and the massive CP count goes hand in hand with sitting in a gym.
My plan is...hold out and hope, one day when they finally add crit chance to the game, dragon claw will move up the ranks allot I think !
and who knows, maybe it will be a very valued moveset for defence.
If you dont plan to evolve another soon, i would say power it. Any sort of dragonite is strong vs most other pokemon.