Bro, as you know, I've worked in both. Off site shops are hit and miss. You have the advantage of not being associated with a certain center, but it's a haul. And if you're talking like a Fox Valley mall type mall, then you will probably go under within a year. No one wants to drag their stuff thru the mall.
Now, if it's a strip mall, you have a chance, but remember, unlike a center, you are probably going to lose your shirt in the summer while there is hardly any business, and your landlord doesn't really care about it. Centers at least can understand that and help.
But if you can do it, then go, boy. I know that if I could support my family working in a shop, I would be. I just don't see the money I need to actually see it working for me. But to each their own, buddy.