Surly's legitimately slipped in quality over the past 8 years, pretty damn hard too. Furious and Abrasive are still really good beers, but that's about the extent of it. Schell's is fairly big time and I think they're the best brewery in Minnesota. One of my favorite breweries, period. So it's not just size and scope, IMO.I'd recommend Barrel Theory. I went to Blackstack a few years ago and it was good, but that was before they were readily available in Central Iowa. I think Dangerous Man has gone out of business.
I know it's fallen out of favor, and people tend to hate the big boys, but I'd also put Surly on my list.
If you like stouts, a Barrel Theory/Surly combo would be lights out. If you're an IPA person, Blackstack.
Blackstack is kind of a one trick pony to me. All they care about is IPAs. They're excellent at making them, but that's kind of all they do.
Twin Cities breweries that I would recommend that don't get as much love as some of these others would be Bauhaus and Fair State in north Minneapolis, Town Hall near downtown Minneapolis. I really like Pryes and Utepils, but have never been to either tap room. Steel Toe out in St Louis Park is good too.