Which Pokemon would attack first in a Pokemon Battle?

Suppose if Swampert and Empoleon were to battle each other and they had no IVs, No Evs and they both have a neutral nature like serious. Who would attack first and why? Here are their base stats Swampert: HP: 100 Attack: 110 Defense: 90 Special Attack: 85 Special Defense: 90 Speed: 60 Empoleon: HP: 84 Attack: 86 Defense: 88 Special Attack: 111 Special Defense: 101 Speed: 60 Please no silly answers and thanks in advance. 10 points for the best answer.