"We" can't isolate the speakers, we're listening to a system. So, my answer is based on the overall sound. I've listened to Magico S5, S3 mkii, A3, and M2 speakers in various systems. I prefer the systems I've heard the Vivid Giya G1 and Von Schweikert VR55 speakers over the systems I've heard with Magico, to include the M2 speakers.
Magico vs the world
Everywhere I look I only see people (end users and professional reviewers) raving about magico. Build quality, incredible sound, etc... everyone just loves them, especially the modern series, A3, M series, S series (mk2 variant). It is impressive for sure. But I am curious, what speakers have you heard that you compared to magico that you like as much or maybe even better?