Top 3 or 5 Agents worth upg for Battle Grounds?

What are top 3 or 5 agents worth upg for battle grounds from below list?

Comments

Absorbing Man, Rintrah, Thing, Spot, and Vision Aarkus will be fantastic at your level

Dani Moonstar, venom, sunspot, absorbing man, spot,Rintrah, cosmic ghost rider,