Here are mine.

These lists are in no particular order.

Season 1:
Guess Who's Coming to the Wedding?
The Triangle
The Operation
Flu Attack
The Way We Met

Season 2:
Take Him, He's Mine
Isn't It Romantic?
Bedtime Story
To Catch a Neighbor
A Piece of Cake

Season 3:
The Housekeeper
Brotherly Love
Dorothy's New Friend
Grab That Dough
Mixed Blessing

Season 4:
Yes, We Have No Havanas
Bang the Drum, Stanley
Stan Takes a Wife
Valentine's Day
High Anxiety

Season 5:
Sick And Tired: Part 2
The Accurate Conception
Comedy of Errors
Ebb Tide
Mary Has a Little Lamb

Season 6:
Blanche Delivers
Stand By Your Man
There Goes the Bride:Part 2
Even Grandmas Get the Blues
What a Difference a Date Makes

Season 7:
The Case of Libertine Belle
Beauty and the Beast
The Monkey Show:Part 1
The Monkey Show:Part 2
Journey to the Center of Attention

"Ladies of the Evening" not only is my favorites of the first season, but of the whole series. The first few seasons were so on the mark, it's tough to pick five favorites from each off the top of my head. Some you have mentioned, though. :)