I can't see it -- the trifecta of Ommegang, Green Flash, and St. Arnold is pretty hard to beat. Outside of Bear Republic, the Group A breweries put out products that compete with other beers that I simply like better. They kinda fall into the afterthought or back-up category for me
I'd say Stone and Sierra Nevada are clearly ahead of either of those 3, and NOLA is on a similar level as Saint Arnold. While I can cherry pick a few beers from Ommegang, Green Flash and Saint Arnold that are fantastic, Stone's entire lineup is great, and their specialty releases take it to another level. Sierra Nevada is consistently excellent from top to bottom, something I can't say about Saint Arnold, or even Green Flash. Ommegang makes great beers, but they are all Belgian styled, so I miss out on a stout and IPA from them.
I guess if you're not a hop head, Stone and Sierra Nevada would be lower in your book.