Which one should I go for?

I(M) am planning to buy one of these mainly for working out in the gym. Will do mostly weight training and slight cardio. And I'll buy a separate flat sole shoe for legs workout in near future.

Requirements: Durability, Moderate-High Comfort

1. Nike P-6000
2. Nike Initiator
3. Adidas Adizero SL2 4-6. Asics Gel-1130(Can't decide a colourway)

PS: This my first ever post on reddit. I apologise in advance for any mistakes.