I'm in academics: Anesthesiology + CCM. This year, I'm cutting my OR time in half and increasing my CC time. Why? As one has mentioned, it's all about perspectives. I get paid the same either way and I enjoy the ICU more than the OR. Life in the ICU is not as bad as you guys make it out to be. Attending life is much nicer than Resident ICU life. If the money factor diverged a lot in favor of OR, then I'm not sure what I would do. I can't see myself giving up either specialty.
The ICUs that I work in include: MICU (a non-IM resident one), CVICU, and eICU.
I like the OR, but these days, at least in academics, it's riddled with BS. It could just be life in academics, but going to PP, I'd hate to manage 4 rooms at a time. So, there are multiple tradeoffs depending on your preferences and locale. In my opinion, the ICU just has less BS to deal with as an Attending.