Just finished Bastion (6.4 h gameplay). As of right now, it'd be #1 on my GOTY list. I can't fully articulate why because I do actually have some issues with the gameplay, but I hope to get some time to put down some thoughts. It's a very special game and a breath of fresh air and if you're on the fence, well, definitely consider buying it.
Hmm, your recommendation for Hamilton was spot on and I'm loving that game to death, so you've peaked my interest, but when I played the Bastion demo months ago it seemed like a shallow repetitive 2d brawler and seemed like a game that'd get old real quick.
Will look forward to your more in-depth thoughts on it.