In fact, my general interest in classic aircraft - post WW2 developments - became my entrance to the MSFS world. Hence, I think that I until now have spent most hours with the 707, the 737 number two.
I still keep FS9 on one of my HDD's for the now rare occations where I want to enjoy for instance Dave Maltby's fantastic VC10, Comet, Trident and Bac-111. And then there are som really rare planes such as the Argosy, CL-44 Yukon etc that we never will see commercialized in FSX or P3d.
All that said, I think that the CS aircraft are as real as it gets. I don't care if the climbing rate is a little too high or low, as long as it does not resemble Apollo 15 :). After all, we are not sitting in a real moving simulator box, but in an armchair starring at a 24 inch screen!

Merry Christmas everybody :D
Anders