My prediction:

Bhagwati, Dixit, and Krugman - for international trade theory

I would have liked to see Krugman win solo for his excellent economic geography work, but I don't see that happening since I think the committee would prefer to have him share the award.

My preferences (not necessarily realistic):

Tullock and Krueger - for rent-seeking
Baumol and Kirzner - for entrepreneurship
Hanushek and ? - for economics of education
Richard Muth, Edwin Mills, and Jan Brueckner - for development and extension of the monocentric city model of urban location