In my opinion the best architects is Santiago Calatrava, he is a spanish architect and sculptor.
Santiago Calatrava was born in 1951 in Valencia. He studied Civil engineering in Zurich, here he graduated with a doctorate in 1979. In 1983 there was awarded his first work of certain importance, Stadelhofen's Railway station, placed together with Zúrich's center where also he had established his office.
On the following year, Calatrava designed the bridge in Barcelona that was the first one that started giving him certain international recognition. To this one they would follow the Alamillo of Seville in 1992 and the Bridge of 9 d'Octubre in Valencia in 1995.
But my favorite building that he designed is the Turning torso located in Malmo, Sweeeden.
This is a picture of this.
Finally i like this architect because he has a modern style, and are beautifull and very technologycal stuctures.