It doesn't get much better than section 120 for Cubs games; smack dab behind home. A buddy of mine has four season tickets here so I get to attend a few games as a tag along each season. Unfortunately, it has become a place to be seen rather than a place for the tourists and purist baseball fans.
I love during the spring when the seats may be a little damp and the ushers all come down and wipe off the seats for you. They're not the most comfortable seats I've encountered; I've sat in the club seats at the United Center. But aside from the bleachers, I have come to find that every seat has about the same amount of leg and elbow space.

Wrigley Field truly is one of Chicago's summer pleasures and makes enduring the harsh winters worth the wait.