Michelle had a few decent ones, but she also has been able to generate hate like no other character, lol. Season 5 in particular was an awful season for her as far as behavior went.
As far as Hole in the Wall Gang goes, I just love how they didn't get caught. That unique twist is what makes it a great episode unlike some other great ones. IMO, at least. Here are what my personal favorite Stephanie episodes are...
A Pox In Our House
Middle Age Crazy
Goodbye, Mr. Bear
Aftershocks
Honey, I Broke the House
Stephanie Gets Framed
Spellbound
I'm Not DJ
Silence Is Not Golden
Fast Friends
Making Out Is Hard To Do
Some I left out because others had a prominent role too. Feel free to critique my list, lol. I also tried to spread it around giving at least one episode for each season. Going through this list gives me great memories and really makes me want to see these again because I loved them, lol.