Help! Which Groudon to power up?

legendaries

#1

Didn´t manage to catch a 90+ Groudon in spite of getting 17/20 Groudons!
He is still a beast though so wanna power up at least one of them, which one should I go for (Atk/Def/HP):
89% 13/12/15
84% 15/11/12
87% 13/15/11
84% 14/14/10
80% 15/10/11

Should I just go for the one(s) with highest attack stat or go for the slightly higher total iv?


#2

the one with 15 Attack.

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#3

The 84% with 15 Attack is your beast.