Omega because he can counter characters like korg, and can regenerate. He is also suicide friendly where as colossus only has bleed immunity to deal with the suicide masteries.
OR is very good for the monthly side quest as well, Colossus ideally needs OR on the team to be a good champ - without synergies he loses a lot of spice
Omega and use as many stones as u can get in the future to level up his sig, even generic ones.
It is true that sans suicides and sans high sig , then collosus is the easy choice. However in the last months or so it has been becoming increasingly easy to get 5* sig stones, via monthly events and what not. So its realistic to think you can take OR to 160 at least in a couple of months or so. Besides, although OR not as tanky and might not have higher damage potential than Collosus, he has 4 utility uses over Collosus:
-Poison Immune - Not only basically bleed inmune too (specially if u run willpower & recovery) but he BENEFITS from bleeds, you want him to bleed so perfect for nodes like caltrops and such. - Has a heal via sp1 and sp3 - Medium and heavy attacks bypass nodes such as thorns and other Electro/Duped Korg type champs and nodes.
Comments
It is true that sans suicides and sans high sig , then collosus is the easy choice. However in the last months or so it has been becoming increasingly easy to get 5* sig stones, via monthly events and what not. So its realistic to think you can take OR to 160 at least in a couple of months or so. Besides, although OR not as tanky and might not have higher damage potential than Collosus, he has 4 utility uses over Collosus:
-Poison Immune
- Not only basically bleed inmune too (specially if u run willpower & recovery) but he BENEFITS from bleeds, you want him to bleed so perfect for nodes like caltrops and such.
- Has a heal via sp1 and sp3
- Medium and heavy attacks bypass nodes such as thorns and other Electro/Duped Korg type champs and nodes.