Saturn is closer.

The Saturn’s best appearance in 2008 happens now. Saturn reached a point in its orbit called opposition on February 24. At this position, the planet lies opposite the Sun from our perspective on Earth. This marks the best time of year to view the ringed planet because it lies closest to Earth and thus appears its biggest and brightest. At this time Saturn lies 1.24 billion kilometers from Earth.

(Photo Source:http://www2.keck.hawaii.edu)