Michael Bluth is the second oldest Bluth son, but the most competent one.  When George Sr. went to jail, it was Michael who was stuck running Bluth Company and keeping the family together.  Michael's wife, Tracey, died of ovarian cancer two years prior to the first episode and left him to raise George Michael on his own.

Michael Bluth Quotes

What would Saddam do?

Michael

Michael: My son's just fine where he is. And he's got the SAT's coming up. You got to do well on those. You studying upstairs?
George Michael: Yeah, I'm just taking a three real quick, so I can get a cream soda.

Arrested Development Quotes

I am having a love affair with this ice cream sandwich.

George Sr.

The zero hour, Michael. It's the end of the line. I'm the firstborn. Sick of playing second fiddle. Always third in line for everything. Tired of finishing fourth. Being the fifth wheel. There are six things I'm mad about, and I'm taking over.

Gob