I love my D810 because it does everything the best.
My second favourite is my Olympus TG4 because it can go everywhere with me (and it does)
I also love my phone camera.
If I have to wax nostalgia... Minox 35GT for the sheer sense of *let's hope this works*
i think that my pristine Fuji X-Pro 1 body @ £168 plus 27mm f2.8 @ £ 150 , both bought separately , but both brand new , is destined to be a much loved favourite - love at 1st OVF sight !!