To the original point......The .40 is a good round as is the .45, both will do a very good job. I have owned and fired many models chambered for each adn of those 2 choices I prefer a .45.
I do think the main reason most like the .45 over the .40 as far as "feel" is because most everyone is running a .40 through a polymer framed gun and personally I think that gives you a much different feel than running a .45 trough a 1911 steel frame. I know the .40 S&W SW99 I had felt much "snappier" than the .40 Beretta 96 Elite II I have now but that feels harsher than a .45 through the Kimber or Para and even more compared to a S&W 625.
I do think the main reason most like the .45 over the .40 as far as "feel" is because most everyone is running a .40 through a polymer framed gun and personally I think that gives you a much different feel than running a .45 trough a 1911 steel frame. I know the .40 S&W SW99 I had felt much "snappier" than the .40 Beretta 96 Elite II I have now but that feels harsher than a .45 through the Kimber or Para and even more compared to a S&W 625.