I haven't stayed since my first report, but what I can say is that the Centric is actually a tad closer in terms of distance to the main honky-tonk district on Broadway. Centric is 3 blocks, while the Grand is like 5-6 blocks. The Grand is closer to the Gulch for dining options. Frankly, Nashville is very compact and walkable in my opinion - I wouldn't worry about location unless mobility is a concern.

You will likely get better views at the Grand as the Centric is mostly surrounded by taller buildings.

I'm returning to the Grand and trying out the Thompson next month, but my previous experiences are that the Grand and Centric in Nashville are prime examples of what these brands should be. Very high-quality.