The regular DP connector is fine because at least it locks in (sometimes too well), and MiniDP has been pretty great (especially when chaining multiple monitors on systems that support multi-stream, so anything except Apple).

I do have a love/hate relationship with USB-C, mainly because you need to double, triple, and quadruple check that the cable actually has all the wires in it for DP and not just USB 3 or even worse, USB 2.

In a perfect world, HDMI would be a historical artifact. In the current world, it's sadly a necessity for big TVs or many gaming setups :(