Need Help Deciding Between Devotions

Hi, so I’m currently reworking the devotions on my character, and I’ve got them now mostly how I want them, however after looking at Jajaja’s Warder Build I’m now torn between my devotion set and his.

Here is my build (not complete yet): http://www.grimtools.com/calc/a2ELry7N
And here is Jajaja’s: http://www.grimtools.com/calc/DV9nwaQZ

They are mostly the same as far as devotions go, with a few differences. My devotion tree is more consistent and gives more damage, however his gives more defense and resists.

Spear of the Heavens + Viper vs. Hand of Ultos - Spear of the Heaven and viper proc way more reliably and work against any enemy regardless of how high of a defensive ability they have, and they don’t don’t need to be bound to a weapon skill. Spear of the Heavens also has a lower cooldown and synergizes better with Arcane Bomb, in addition to providing more Offensive Ability. However, Hand of Ultos gives slightly higher elemental resist shred when it actually does proc, and requires way less devotion points to get its effects, in addition to giving Chaos resistance.

Chariot of the Dead vs. Tsunami - Tsunami provides some nice and consistent AOE damage and synergizes well with all of the elemental resistance shred, however Chariot of the Dead’s devotion ability provides extra survivability, which is something my current devotion tree lacks. Even though it gives a bunch of cunning and offensive ability, the total offensive ability in the end is only 10 - 20 points higher than my current one since it involves giving up Spear of the Heavens and Viper which both give OA%.

I can’t really decide which one would be better for my character, which is why I’m posting here in hopes that someone with more experience would be able to give me some insight.

Ultos and Chariot. It’s not even a contest, really.

I would say Spear + Chariot.

While Ultos is good (even though this specific resistance reduction isn’t as good as you might think), it’s a glorified trashmob killer. Meaning it’s a pain to proc when you really need it.
Spear actually grants a little defence with the stuns, but most importantly is extremely reliable and procs all the time.

Tsunami is ok-ish, but not when compared to chariot. Chariot helps you all around with offense and defense even though you will never really notice its effects: it’s there and it’s good.

Now, if you are talking “super end game I have everything I want and I want to optimize my build with gear made of pure unobtainium”, then I would agree with FunkyGandalf:
Ultos + Chariot.
Because when you reach 4K OA Ultos is indeed very reliable and is ultimately better than spear of heaven.

Spear -> Convenience and you are gearing up.
Ultos -> I finished farming and I am ready to stomp the game.