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Who is the better AW defender

Comments
Have them at rank 3 now. At this point I'm not that high in AW and the alliance is slow moving in getting higher so I have time. currently working on Unstop Colossus, then Hyperion. due to ISO type and expiring soon I thought I should use them before I lose them. Colossus and War Machine would use the type of ISO I'm about to lose.
War machine probably better at a glance especially with the only use for colossus in old AW gone(thorns).
Forget unstoppable Colossus and jump right to working on Hyperion. He's hands down the best cosmic in the game. In fact I can think of maybe 3 other champions that are arguably better. Both versions of collossus are probably the worst champions in their respective classes. That's assuming you have them duped.
On the right node war machine can and will get kills. If he gets a special out after his buff stage it's lights out. Most can bait it out or overpower him before that but for your tier he's great.
colossus is great on thorns and war machine on unblockable l1