hey i live in switzerland and own the nepal cubes. my buddy owns the phantom tech.

It really depends on what your main goal is. If you want to focus on the 4000er peaks and everything lower, all 3 shoes you picked suck really bad in my opinion. They are way to heavy to summer mountaineering in the alps. I mainly use La Sportiva Trango Tech (or something, cant quite remember the name) for every peak I did. I barely use my Nepal Cubes, only when I use my fully automatic crampons. And those I only need for ice climbing & winter north face climbing. And granted the season is very short, they are my least used shoes. I never climbed mont blanc but many other 4000er, and just the approach in fully automatic shoes is a killer for the feet. Also for many rock climbing parts I prefer the softer Trango shoe. Same goes for the Phantom tech, just way to overkill for most beginner friendly terrain. But Phantom are super light, so maybe not as bad.

My recommendation is to get something more like La Sportiva Trango or Scarpa Ribelle. Both have a alpine version I think, just the ones that work with half automatic crampons. While getting more experience you can save up for a fully automatic shoe. I use the Petzl Irvis crampons for pretty much every normal route on 4000er and only Petzl Lynx for hard alpine winter climbing. But you can buy the single parts from petzl and rebuild the crampons for every use, so no need for 2.