Ok i am level 25 and 2nd job is coming fast! But i really really dont know what to be!!!

Ice mages are easier to train than clerics. But once you hit 3rd job, everyone wants to get hooked up with priests because they can give 150% exp.

I'm an ice mage... and it's fun. I enjoy it. ^^

lightning mage and start ksing everyone

Ice... Clerics get boring and are WEAK feels like your a perma mage and you just get a cool teleport skill and near inf health potions tell 70 (hopefulyl but thin still sucks)

Ice does get better hopefully (I am making a new on on broa but not trying to hellofva hard...

I would say Ice mages.. They can Freeze targets and do way more dmg then clerics... But it's up to what you want.

I'd say ice/lightning wizards are more fun than clerics, but priests get the better end in third job. Because of the freezing advantage and the ability to do damage to multiple targets, ice wizards really have a good advantage over most other jobs. Additionally, clerics can only train on undead monsters and can get boring really quickly.
On the other hand, when you reach 3rd job and become a priest, priests are in very high demand. They're needed for any sort of party, whether it be at vikings or aqua dungeon. Additionally, priests are way more favorable at zakum than an ice wizard.
I suggest cleric if you have a lot of patience and will reach 100+, but if Maplestory is only a temporary game for you, you can choose the path of the ice wizard.

I/L if you can manage to hold back and do ice first, cleric if you want to start massing right away.