Heh, when it comes to audio software, you could throw a lot more in the mix, e.g. Logic Pro, Native Instruments (at least in the past - shame what happened to them) and - arguably ;) - Steinberg among others.

Live is not world class UI. It’s great software but that’s despite the interface, not because of it.

Same thing with Premiere, or the Pioneer CDJ. It’s not the standard because it’s a joy to use, it’s a standard because it’s functional.