I/L vs. Cleric.

What's this? Another "choose me a class, lassy!" thread. Annnyway. I'm trying magicians. Never been one before for an extended period of time. I'm LUKless ("What a stereotypical damage whore! Magician and LUKless?") and both I/Ls and Clerics appeal to me. I'm a very indecisive person and I can't seem to choose. Can someone list some pros/cons of each class, or give me more information on them? I want to have fun while playing, I don't care too much about high damage, but I'd also like to level fastish. I'll only be on Maple on the weekends for a bit, and I've always wanted to make it to the third job. Thanks guys.