Hi i am wondering which shoe should i choose for half and full marathon races Coldpack shoes are...

Hi, I am wondering which shoe should i choose for half and full marathon races. Coldpack shoes are Nike free run distance, sauckony kinvara 7 or the asics 33-fa. I am having over a 1000 km with the free 4.0 and i'm in love with the flexibility it's provide. However i am searching for something with a bit more cushioning. Now i have over 100km with the 33-FA and i gotta say it's a bit stiff. I am wondering if the saucony and the nike would be more flexible and a bit more cushioned than than asics