What track spike shoe should i purchase: Nike zoom Ja spike, or Nike zoom mawler spike?

i am a sprinter and i can run the 100, 200, and 400. the 400m is my best race and i dont know what spike to get. last year i had the asics phantom 2 spike. i like the mawlers but the permenant spikes dont make me want to get them. i like the nike zoom ja spikes too, but idk what i should get. helppppp?!!! lol