Have played with several configs, and I personally believe it comes down to preference. As long as you are comfortable in the security of your device. i.e., I would not use Ledger personally bc they are closed source and pander to NFTs and such. I like Jade, but their airgap functionality is still a bit confusing to me and is also newish, so if you’re strict on airgap, I wouldn’t recommend that.

Quite honestly, I would recommend CC + CC + Jade or CC + Jade + Jade just because those are my two favorite devices, or if I just wanted to airgap with PSBT, would use CC + CC + CC.

Pro tip: Setting up multi sig on Sparrow has made it all VERY easy for me. In case you haven’t done that yet.