I was almost positive there was a similar thread to this somewhere, but I can't seem to find it--may have been another forum... ;/
Well, anyways... I like spring the best. I'm a nature-lover and it's so beautiful to see everything come back to life after being dormant all winter. Seeing all of the beautiful colors of cherry and redbud blossoms, pale green young leaves, various birds and butterflies becoming active again just makes it a rather tranquil season.
...I love spring rain, it's very peaceful--except it always knocks all of the flowers off of the trees. xD Rain in any other season isn't very special, unless a thunderstorm is included. I just like the season--plus it contains my birthday. xP The name of the season is rather fitting, too: everything springs back to life~ =)