I’m glad that most of the older formats are gone. Screws are cumbersome, USB formats were intentionally varied for profit, and molex would break itself before you could seat it properly.
I love USB-C for its universality and SATA cables are a nice alternative to the old IDE. I wish they’d come up with a better solution to the plastic clips on my Ethernet and PSU cables.
As for my favorite… Maybe 3.5mm? I mean, it’s old as dirt but still super functional. Nice chunky clicks and usually a solid connection. I miss having a 3.5mm port on my phone. It obviously has some drawbacks, but it’s a solid contender.