Many Pokémon GO players assume that a perfect 15/15/15 Pokémon is always the best choice for PvP. However, in Great League and Ultra League this is often not true.
Why is 0/15/15 good?
Attack contributes more to Combat Power (CP) than Defense and HP. Because Great League and Ultra League have CP limits, Pokémon with lower Attack IVs can reach a higher level before hitting the CP cap.
This usually results in higher total stats and better performance in PvP battles.
Simple rule: for CP-capped leagues, low Attack and high Defense/HP often creates a better PvP stat product.
Example
A 0/15/15 Azumarill can often perform better in Great League than a 15/15/15 Azumarill because it reaches a higher level while remaining under 1500 CP.
How PvP rankings work
PvP rankings compare possible IV combinations and calculate the resulting stats under league CP limits. Rank #1 means the IV combination provides the highest stat product available for that Pokémon in that league.
Should you always keep rank #1?
Not necessarily. Some attack-weighted IV spreads may perform better in specific matchups or win CMP ties. However, for most players, high-ranked PvP IVs are a great starting point.
Check your Pokémon
Use the PVPium IV Rank Checker to instantly evaluate your Pokémon and see its ranking in Little League, Great League, Ultra League, and Master League.