upgrade wizard tower first or mortar first?

Saved up 5.2m gold. Which building should I upgrade first?

I would go for Wiz (assuming your talking about niv6 going to niv7) cause it can one shot goblin and look scarier than a mortar niv7.

I say mortar because it has a larger range.

Yes I am upgrading them to Level 7

OK. now Wizard tower 1, mortar 1.

Wiz
10kittens

wiz.
10 wizards

mortar it defends better because of its power. So make it big and awesome so it can defend the base while the wizard get its turn at upgrading

I would definitely say wiz tower.

thos purple beasts can one shot archers. Whereas maxed mortar doesn't carry to much extra priviledge