That most pleasant of afflictions.............
Not too many CSers will have long term access to any two current models on your short list to be able to give you informed, unbiased advice of the calibre you are seeking. Nearly all machines at that price bracket are fantastic, are built really well, perform to specs and look great on your bench. No-one other than yourself is qualified to tell you what you like or what is good for you.
You could ask an independent service/repair tech about which of the machines come on to the bench more than the others, that information might be helpful. They might also be able to tell you whether any of them have 'better' internal build quality and access and whether any of them have superior components to the others, this may sway your thinking but none of these machines are vastly inferior to the others, if at all.
The rest is up to you; try each machine, get your hands on them and visually appraise them, when you do this you will probably find yourself drawn to one, over the others. Don't make a purchase, yet.
Factor in the grinder, a Macap?, a Compak?, a Mazzer?, something else?
Go and have a coffee, sit and reflect, buy the the one that you keep thinking about.
Trust your senses and choose accordingly.