The "subject to change" factor has just kicked in:
3) Hookman
2) Secret Witness
1) Death With Father
I've just been thinking about how powerful that episode is, with a great Andrew Duggan performance, and the young Peter Strauss showing the fine actor he would become...oh, and Jack Lord is supreme, as usual...
Looks like this thread is becoming my own personal Five-O diary! Oh well, at least it's on topic! 
I've been watching episodes since I got the set as a present last week. Secret Witness was one I didn't remember and I definitely got caught up with it.
Also, on Death With Father, I liked how at the opening of the episode, Stevens amps up the music every time one of the credits appears. I remember being serious weirded out when that episode aired on its original network run with the ending.
Unfortunately, Leonard Freeman didn't live to see Death With Father aired. He passed away two days before.
And a similarly sad note, I just stumbled across how William Finnegan, a producer of Five-O for seasons four through seven, passed away late last year at age 80.
UPDATE: Here's Finnegan's Variety obituary. He had quite a post-Five-O career
http://www.variety.c...6...yId=25&cs=1
Edited by Napoleon Solo, 07 June 2009 - 06:52 PM.