All will make terrific coffee in the right hands. It really comes down to personal preference in my opinion.
Some key things to keep in mind as you choose:
- As you move up the scale in planar grinders, you purchase only speed. Whilst the doserless options will possibly be more convenient, they will not produce a better quality grind. You therefore pay for perceived convenience. Partner acceptance factor is often a little higher with timed doserless grinders in that they are generally a tad easier to use. Your wish to be able to change grind quickly rules out Macap.
- The vibe pump machines will not produce a better cup than the rotary pump equivalent. You are purchasing silence and the versatility to plumb in later on if you wish. If you can pick a difference, please enter (and then win) the world cupping championships! ;)
Ultimately, the best bet might be to have a look see to check them out in the metal. If you are in Melbourne, pretty much everything on your list is on the bench and in stock.