I'd go as far as to say it's my 2nd favorite of the quadrilogy(
I think it's clearly better than TOD, while I've always like The Last Crusade, this was a little better as it was more original as LC feels like Raiders Part II.
KOTCS would literally had to have been the greatest movie ever made if it wanted to top Raiders, which of course, is an unfair expectation of any movie.
It also has a special place in my heart as it's the first time I have seen an Indy movie at the cinema(or have even seen Harrison Ford on the big screen for that matter). Might very well be the best theatre going experience of my life.