I use the 150 for portraits. I can get the camera in far enough distance so as the client is not so nervous.

Also I can have the persons eyes tack sharp whilst the background is a blur.

The 150 is wonderful for head & shoulders and three quarter shots.

For full length portraits and groups I wil usually use the 80mm.

I don't use the 60 mm very much for people photography other than environmental photographs with the people in the scene.

Just what I do.

Hope this helps you.

My wife and I spent a few days here:

http://maps.google.com/maps?client=s...ed=0CCQQ8gEwAA

Beautiful city and nice people.