I actually never was too into the original PM...for me - 3 thru 5 are where its at!
Loved the 4th & 5th, best when viewed back to back. Jeff Burr is a real underrated director. The third was boatloads of fun too.
As for the rest, can't say I ever enjoyed them, although for the 2nd, it HAS been a while. Can't describe how big of a letdown PM vs. DT was...
They are actually working on ANOTHER one as we speak. Shame the legacy is getting crapped on more and more for Band's baby project more or less. Since the 5th one, its been awful.