DT/Hu Dragonite

I prefer it to DT/O. Mine's powered up to level 36.5. It hits like a train and it hits fast.

But it's a matter of personal preference. Save up for a better Dragonite. Power up the DT/H. Up to you.

I suggest you try it in a gym, and then decide if you like it or not, then you will know what to do.
EDIT: I remember fighting one with your moveset. It did hit me, but still my ice attackers did their job, so there's always a cure on any mon regardless moveset etc.

I like using Hu on offense and dislike fighting against it. It is much less energy-efficient than O (or even HB); but I find it much more difficult to dodge. On offense, it leaves you less vulnerable.

I love my Hurricane I have two powered up and I use them for attack/defence. I don't have DT/O and most ppl prefer that over Hurricane but I think it's close

Will probably wont be any big difference unless you are fighting a dragon type so outrage deals extra damage

HU is fast cast so let you fill up bar again faster and do extra hits than using 2x outrage

In the end you will probably use only 2 outrages in a battle or 2 hurricanes, currently what matter for dragonite is his quick attack, having dragon tail is what will make him hit like a truck honestly

I wont risk 6 months of grinding for the chance of a sw/hy dragonite, i would power him up until i feel he is fine

Well, it is absolutely worth powering up, because you can use it as both a defender and an attacker. BUT, I prefer Outrage over Hurricane for two reasons: SE damage into Dragonite and neutral vs Rhydon and Tyra whereas Hurricane is one edge less effective in those matchups. Also O is way more energy efficient. That 3rd Outrage after you generated 150 energy might safe your ass and end that battle early enough to avoid the Stone Edge from Rhydon or Tyranitar

Players who dodge everything generally get better results with DT/H than DT/O due to its faster and less frequent charge move. They have different type effectiveness. DT/H is the best option in the game against a Grass charge Exeguttor, but is not as good against Dragonite as DT/O.