Entertainment Weekly's new issue has these Top 7 by creator Mitch Hurwitz.

1. (tie) Pier Pressure (season 1) and Making A Stand (season 3)
2. The Ocean Walker (season 3)
3. Good Grief (season 2)
4. Motherboy XXX (season 2)
5. (tie) Exit Strategy (season 3) and Development Arrested (season 3)

Pier Pressure - the introduction of the one armed man
Making A Stand - the last appearance of the one armed man
The Ocean Walker - the end of the Charlize Theron arc
Good Grief - George Michael finds George Sr in a spider hole
Motherboy XXX - Lucille and George Michael in mother-son pageant
Exit Strategy - where the Bluth boys go to Iraq
Development Arrested - the series? finale

My top 5:
1. Motherboy XXX
2. Development Arrested
3. Justice is Blind
4. S.O.B. Save Our Bluths
5. Prison Break-In

I'm pretty sure "Afternoon Delight" would be in my Top 5 (if not #1)

Hmm... sounds hard just to narrow it down to 5.

1. Good Grief
2. Righteous Brothers
3. Let Them Eat Cake
4. Meet the Veals
5. Making A Stand

My other favorites are Bringing Up Buster, Pier Pressure and Development Arrested.

1. Sad Sack


2. Meet the Veals


3. Afternoon Delight

I'd have to go with the last 5 episodes as my favorites. I've always enjoyed the show, but these last five have had me in tears. I think it's because they realized they were getting cancelled so they just made it as rediculous as possible.

"Bringing Up Buster" ?

I'm not sure about the best episode, but the funniest thing ever on the show (and the funniest thing I've ever seen period), is the very end of The Ocean Walker.

That's my absolute favorite.