Clay Risen writes in The New Republic:

In film, if you win the Golden Globe, you’re automatically the odds-on favorite to win the Oscar. When it comes to the two largest architecture awards, however, it’s just the opposite–those who win the Aga Khan, a triennial series of awards last given in November 2004, rarely have a shot at the Pritzker Prize, announced each spring. And those who win the Pritzker are rarely the sort who could win the Aga Khan.

That’s because the two awards take radically different approaches to recognizing architectural excellence. The Aga Khan is awarded to works of architecture; the Pritzker to architects. The Aga Khan goes to a variety of projects in different categories; there is only one Pritzker. The Aga Khan recognizes everyone involved in a particular effort–contractors, engineers, and surveyors; only architects are eligible for the Pritzker. The Aga Khan committee prizes social contribution; the Pritzker’s looks more heavily to design quality.

Their public reception differs as well.

More here.