Both are great. Hyperion is more of a swiss army knife... good for a variety of fights and quickly accessible damage. Guardian takes more ramp up, but destroys domino and havok on trickier nodes like Aegis 2. He's always a perfect counter for rage nodes.Probably would go Hyperion first, but would plan for both.FYi, Guardian needs a high sig for his damage potential.Hyperion is good unduped, sig 1 is a game changer as the furies will last longer and he only needs about sig30 overall as his max damage potential doesn't scale much beyond that.
Definitely guardian. He’s got more uses and way more utility than hype and also has crazy damage.