I've had a bunch of SIGs and a bunch of CZs.
I've been a big CZ fan since they first came to the US thru CZ-USA. I've got a CZ-85 Combat, a CZ p-07, and several other CZ-pattern guns. (I've owned Compact 75B [safety-equipped], 75Bs in .40, 75Bs in 9mm, and several pre-B CZs.)
I've owned and tried all sorts of SIGs: a P228 (tuned by Gray Guns), several P220s, including a Match and Super Match, a P226, a couple of P239s, and and an early SIG GSR (1911). (I also had a Sig P210-6, which I loved, but had to sell during a time of financial need.) They were all good guns, but they never seemed to fit me well. (That was especially true with my SIG P226 X-5 Competition in .40 -- I couldn't hit the broad of a barn with that gun. ) But all of these SIGs, including the P226 X-5, performed well in the hands of others. And except for the P-210-6, the P-220 Super Match and the P226 X-Five, all were decocker-equipped DA/SA guns.
I generally like guns that can be carried cocked & locked, or striker-fired guns that have the same trigger pull with each shot. Recently, I picked up a SIG P320 and a CZ P10c, both in trades.
I've found that the P320 and the CZ-p10c both shot very well in my hands and were very accurate. While I had upgraded the CZ P10c with an HBI Trigger system, I was surprised that the stock P320 trigger was just a bit better than the was the upgraded CZ P10c's trigger. Both were very good triggers, however. And the targets (group size) looked about the same. I've become a fan of both the P320 and the CZ P10c.