The NY Times has a review today of the new Honda Fit and Toyota Yaris. It liked them both, but the Fit came out slightly ahead because of its four doors and innovative back seats (allowing more storage).
I like the look of the Yaris better, and this little detail made me like it even better.
The base price of the Yaris hatchback is $11,530 with a manual transmission (and a quaint throwback, crank windows, which provide a great upper-body workout).
Did you see that? Crank windows? Cool!
That said, having a family, I'd probably need the four doors and increased storage.