Ranking up champs

Elar

Should I R2 my 5* Korg or 5* Ronin over 4* R1 Hyperion, 4* R2 Captain Marvel (Movie), 4* R3 Namor, 4* R4 Havok, 4* R4 Storm Pyramid X? Who should I take up?

Cangaceiro

5* Ronin