Best order to upgrade in th9?

I have a question what is the best order to upgrade my buildings/walls/hero's.

At this moment, I'm level 99, Town Hall 9, with the following stats:
- Wizz tower: maxed
- Archer tower: 3 level 11, 3 level 10
- Mortar: 3 level 7, 1 level 4
- Canon: 3 level 11, 2 level 10
- Tesla: maxed
- X-bow: 2 level 3
- Air defense: 1 level 7, 3 level 6
- Giant bom: 4 level 2
- BK: level 14
- AQ: level 10
- CC: maxed
- Walls: 98 lvl 8, 152 level 7

Troops (not maxed):
Gollum: level 1
Valkyrie: level 1
Witch: level 1

In which order should I upgrade/max out buildings/troops/hero's?
And what should I upgrade/max out before upgrading town hall to level 10?

Thank you in advance!

Attachment 80963In my opinion, I would suggest finishing up the mortars first, cannons, archer tower, air defense, and lastly xbows. That's what I did. I will be finishing up my teslas after I'm done with my xbows!

max everything except for the walls if you don't like to max them. but for me i'll max them too!

i first maxed my x-bows as this can be a deterrent to attackers.

followed by whichever has the highest cost - in this case if not mistaken the archer towers...

now i'm just left with the bombs and the new level 12 miners...

and of course, the walls!!!! lol