Mike,
I was faced with similar choices when I did mine. We also wound up with a stacked double oven and separate microwave. So glad that we did it that way! I did do a cabinet depth GE Monogram fridge with the top mounted compressor and like the looks, but had to settle for a 36" wide unit. Wish I could have done the 42", but it is sufficient, although seems so much smaller than a free standing unit !
About 2 yrs after I completed mine the DW died and a new one with a panel matching front was 3/4 inch deeper !! I needed to make special transition moulding for the depth difference, but fortunately didn't need to redo the counter top !!
Again, beautiful job and enjoy!