What'd you like in Bastion over Transistor? Curious 'cause I nearly pulled the trigger and bought it earlier.
Aside from the combat, I liked everything else about Bastion more.
Bastion's combat worked, but I didn't think it was great. The combat is a lot more interesting in Transistor due to the strategy element involved. I've seen people say that Transistor is "also playable in real time like Bastion," but I found that it was almost always easier to use the turn system. That was a bit disappointing for me since I was hoping I wouldn't need to rely on the turn system all the time, but I ended up using it the majority of the time.
Transistor has amazing art just like Bastion though. I found the music to be all right but not as memorable as Bastion's soundtrack. Story/narration was the weakest part of the Transistor, if that matters to you.