Which 5* Cosmic to Awaken

Angelfire_TNOR

Just finished 5.3 and got a cosmic Gem. I have a 5* Hyperion and Corvus to choose from, both at Rank 4... leaning towards Hyperion as think he benefits more. However, I tend to use Corvus more and wondering if the refresh on his glave charges is significant enough to warrant the awakening. I think I would use my 4* Heimdall synergy in those rare cases where the cheat death mechanic is handy.