Alpha or normal greninja (mega) for Z-A?

Question

I have both and I was wondering whether I should use the normal or alpha version.for example Alpha gives it more bulk but also bigger hit box.

As usual name the threats it can handle and typing and stats and anything else you find will be helpful

Comments

Alphas have identical stats to normal mons

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Yes but alphas all start with 252 HP EVs, granting extra bulk

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but you can just give it hp evs. vitamins are so easy to get in za

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True but alpha is easier, plus I already have both alpha and normal