I have tried the GoWalks and the Skechers with the Memory Foam.
I love love love all of my pairs of GoWalks. They are comfy, light weight, super flexible, stretchy (great for my wide feets). I've also used different styles of the GoWalks. I have a pair of ballet flat-style that are amazing, two pairs of regular sneaker style, both wonderful, and a pair of ones that almost look like Toms, and they're great too. I'm on my feet a lot for work and I wear GoWalks almost daily and have never had a problem.
Because of all that, I thought I would love the Memory Foam sneakers. What could be better than walking on a cloud all day? WRONG. They were horrible. They were the same size and width of my GoWalks but my feet both felt really squashed. The memory foam sole was nice, but everything else was a disaster. My feet swelled up so much in them (to be fair I was standing/walking ALL DAY LONG for a 9-hour shift) and they were so tight on the top of my foot that I got horrible blisters.
.