"Value" is such an interesting word. I went with St. Anthony Main, for there will be more foot traffic from the surrounding nieghborhoods with the new Lunds and other retail that is established and still to come. That will make more of a scene for the area there than the Mill City Museum, area restaurants, and the Guthrie likely will ever for the Mill District (IMO these listed spots may mainly be pulling people from out-of-town and the suburbs).
Money wise, this is of course merely a guess, it seems to be going that way too (toward St. Anthony Main). Who knows, that could very well change with the wind.