Warrior
The warrior is your typical giant sword wielding, huge damage dealing tank of destruction. Warriors may wield either great swords or daikatanas. Their usual armor used is the armor set. Warriors deal the highest amount of damage in  cabal alz and most of their skills are single target skills. Also, since the armor set is the strongest armor defense-wise, warriors boast the highest damage and one of the highest defenses. Because warrior skills are all 1 sided and mostly fall under the sword skill rank, warriors are a very easy to class to play and are probably one of the best ones for beginners.

Pros
+ Highest damage dealers
+ One of the best survivors due to high defense and HP
+ Shiny armor and large swords are appealing to most
+ Exceptional in PvP due to attack and defense.

Cons
- Most people do not like how warrior skills take a long time to cast
- Said to be hard to train with in Lakeside due to lack of stun skills

Misconceptions: Warriors do NOT attack slower than everyone else. Their skills take LONGER to cast, but as for normal attacks, they are no slower than anyone else's attacks. Nor do warriors walk the slowest due to armor weight.

Wizard
The wizard is your AoE, spellcasting, ranged class. Wizards wield dual orbs as power sources for their magic and wear the martial set for higher avoid, but lack defense as compensation. Wizards are excellent fighters due to their long range AoE attacks that still deal high amounts of damage. Wizards also have the ability to freeze monsters from a range so that they cannot even reach you, making your lack of defense not even a factor to worry about. Since wizards are a 1 stat class like warriors and mainly use just magic skills, wizards are a class suitable for beginners as well.

Pros
+ Best long range AoE
+ Capable of freezing opponents from far away, preventing you from harm
+ Decent avoid rate
+ Powerful in PvP due to freezing and range

Cons
- Low defense

Misconceptions: So far, none that I know of. I remember hearing that wizards have more HP than bladers, but I have never confirmed that notion.

Blader
The blader is your dual sword hack n' slash, slice n' dice class. Bladers have the option of wielding dual katanas, dual blades, or one blade and one katana. Similar to wizards, bladers equip the martial set for optimal avoid, but lacking defense. Bladers are a very fast class. Many of their skills deal some kind of AoE damage and have some of the prettiest skill animations the game has to offer. Bladers are typically seen as a beginner friendly class as well since a majority of their skills only lie under the sword skill rank.