I prefer the Baby Taylor. It is more durable that it seems. It holds its tune and has high playability. Strings are fairly low, no buzzes and doesn't sound muted like the little Martins. I guess I just like the sound it produces. It's actually my main acoustic, because it's high quality and easy to play.
The GS Mini was not a good guitar for me. It buzzed around the neck and was difficult to play for me at best. Not good tone, and I tried out a lot of them.