Which ACT has the best OST?

Possible spoilers?

For the sake of this discussion, let's consider Home Defense battles as an Act of their own.

I'm at the start of Act 3 myself, so I can't say anything about the music there. But I feel like Act 2 clears Act 1 in terms of the OST.

Of course, Act 1 has such classics as Chum Bucket Kitty and Flush, as well as less popular hits like Kitty Bones. But Act 2 has Feline Invader, which, for me, is the best track so far. Lonesome Road is also good, and So High is highkey a vibe.

If we're talking Home Defense, Tina's track is very catchy, and Brush your Teeth is cute, but nothing to write home about. I haven't heard any other tracks from this "Act" yet, though...

What do you think?