Thank you for all of the replies... for me the Gen 3 has always been a good platform, the newer generations are very good too. But as I stated at the beginning many of the changes that were made to the Glock Gen 4/5 are things that I felt I never needed or was looking for.
As I test-drove the G45/19/43X in Gen5 (did shoot a couple mags through a Gen5 G17) I realized that I didn't like the flared magazine well, the beveled slide and frame, the half-moon cut-out, the ambi-slide stop, the new slippery finish, front serrations, and the marksman barrel (I always thought Glocks were accurate).
I like CHOICE, and I'm glad that Glock has given us choice in five generations...for me the Gen3 is my choice (YMMV)...