A bit more info about your lifestyle, the terrain around you, traveling (like often, or just rarely), car size, it is hard to tell. I personally would not get the Priam even if it is truly beautiful, but for that price, not as nice to push nor as sturdy as I would have liked. So from your three, I would not take the Priam.
The question after that is, do you need something lightweight right from newborn? If yes, the Lynx is the lighter choice, and although not extremely compact, the folded size in the two-piece fold especially will work even with an average car. If lightweight is not a priority with your main, from-birth pram, the Joolz combo seems to solve more problems - I mean, you can use the Day+ around the house, for daily walks (the push is very nice, to be honest, even better probably than the Lynx's - maybe just the Fox pushes better than that, and the Britax Go Big which is discontinued and a different weight category)... and for traveling, you can use your super-compact Aer for even the car seat/quick shopping trips, to the doctor's, etc.
So answer yourself that question - is it more practical for you to have one lighter full-size pram, or do you have space for a larger, heavier one plus a small, compact one? Because both options here are good.