Who to take to Rank 4? 5* Hyperion, Korg or Dupe Modok

_Reef

I currently use Modok as AW Boss, but I believe Korg would be better, I use Hyperion for attack in AW but not in quest, doesn't fit the team. Alpha 2 is rare to me so I kinda got one shot with this, any suggestions, Also got a rank 2 Massacre i like what do you think?

Lvernon15

Rank up for offence not defence, so Hyperion