Here's my list: 59 Wiz, 55 Paly, 43 Ranger, 35 BL, 19 Druid, 15 Shammy, and a couple others that don't see past the character select screen.
Decide which toon you want to be your "main" and try and use it for your main playtimes. At times any class gets difficult or boring, or perhaps you are crunched for time, etc........that's when the alts come in handy.
Mostly just try and have fun.