Atlanta's midtown and downtown are connected by continuous development, so I think it is fair to compare them to downtown Houston. Looking at the two maps, it looks like downtown Houston and midtown+downtown Atlanta have about the same number of total projects, but Atlanta has much more high rise residential buildings proposed. I think that Uptown and Upper Kirby are the most to blame for downtown lacking in high rise residentials compared to Atlanta. While I might give a slight edge to Atlanta in overall building design, I still think 609 Main is better than anything proposed in Atlanta.