<human>: Can you give me the gist of the text in a nutshell?

I am buying new shoes, most likely from runningwarehouse.com, and I have New Balance 1012 right now and I love them. I was looking around on the website (also looking on roadrunner.com and cross comparing) and started to look into Asics, Saucony, and Brooks (my coach loves those three companies) and I had an Asics once and I hated them. I have wide, flat feet and I could not run in them. I had to return them for a pair of New Balance. I have always wore New Balance, but I want to see if I would enjoy something better. If there is a chart or something comparing the sizes, that would also help.
<bot>: I am looking for new shoes. How do Asics, Saucony, and Brooks fit compared to New Balance, width and size wise?