I think you're looking for this.... taken from Zyrusticae @ http://www.bladeandsouldojo.com/topic/119924-what-are-the-pro-and-con-for-each-class/

Blade Master (Difficulty: ●●●◐○) Pros:

Extremely powerful defense thanks to block and evade spam
Can tank with +aggro traits
High overall damage output
Damage output can be very bursty (great for fighting bosses that have little downtime and for PvP)
Can protect party members from ranged attacks (and all attacks if traited)
Strong chi management while tanking

Cons:

No party buffs
Can only block attacks coming from the front
Lots of damage comes from stationary lightning AoE, which can be avoided
Loses noticeable amount of damage from loss of chi regen attack procs if not tanking or if the opponent times their attacks correctly in PvP

Kung-Fu Master (Difficulty: ●●●●◐) Pros:

Like BM, can tank with +aggro traits
Strong defense thanks to parry, with heavy emphasis on counter-attacks
Very high sustained damage output, especially with effective use of pressure point attacks
Strong chi management, can spam attacks non-stop
Can provide powerful healing during take-down or protect allies with an ice shield with the right traits
Strong gap closers on short cds (one at 6s, another at 6s unless traited for knock-up)

Cons:

Parry has a much smaller window than BM block (1 second)
Can only parry attacks coming from the front
Highest learning-curve of all classes, especially in PvP
Heavily single-target oriented; limited AoE potential

Destroyer (Difficulty: ●●◐○○) Pros:

Extremely durable: highest HP count of any class
Spin-to-win - can provide immunity to daze, stun, and KB, increase movement speed, increase defense, and/or parry, depending on traits
High sustained damage output in PvE, can be bursty in PvP
Strongest CC abilities of any class; only class besides Blade Dancer that can hold a target down for 6s; gets the strongest buffs & debuffs during this state
Relatively easy-to-use
Can carry allies out of danger

Cons:

Spin parry has the tightest possible timing (0.5s)
Can be vulnerable without chi, even with high HP
Can be dependent on Enrage/Adamant in PvP
No party buffs outside of Seize/Suppress unless traited
Gon exclusive

Force Master (Difficulty: ●●●○○) Pros:

Long range (i.e. not melee)
Strong chi management
High sustained damage output
Lots of roots and slows
Great kiting ability
Can protect party members from ranged attacks
Pew-pew-pew!

Cons:

Extremely squishy
Difficult to use in PvP, nearly if not surpassing KFM-tier in terms of difficulty, thanks in large part to weak burst
Aside from roots and slows, has weak CC synergy in PvE (must be quick to finish stun procs)
Only has projectile/charge attack parry, which must be traited for and has the tightest possible timing (0.5s)

Assassin (Difficulty: ●●●●○) Pros:

Very tricky: has lots of misdirection abilities, great for mind games in PvP
Only class with built-in stealth besides Summoner, and the only class with offensive stealth abilities
Is a friggin' ninja
Strong emphasis on DoTs and debuffs, can wear opponents down over time
Strong omnidirectional dodge ability with decently long window (1.5s default, 1.0s with daze trait)
Can protect party members from ranged attacks
Can pull allies out of danger (if traited)

Cons:

Squishy
Weakest PvE CC synergy among melee classes; has no ability to hold down the enemy
PvE contribution is often invisible (no pun intended) compared to other classes due to the nature of DoTs and debuffs
Dodge has long cd (8s default, 12s with daze trait), is relatively easy to read in PvP
Extremely vulnerable to wide AoEs knocking them out of stealth
Second-hardest class to use after KFM
Jin exclusive

Summoner (Difficulty: ●●○○○) Pros:

Extraordinarily durable thanks to their ability to drain life from their cats, among other self-healing abilities
Strong chi management
Lots of DoTs and debuffs
And party buffs!
Cat is pretty cute, can tank and revive allies
Very versatile and easy-to-play
Omnidirectional dodge doubles as defense and stealth, can be applied to party members, resets cds on a number of damage abilities, and is hard to read in PvP

Cons:

Vulnerable to cat being slept
Cat AI can be unreliable and slow to respond
Cat takes a long time to heal and takes time to resummon
Hardest-hitting skills require a stationary target
Slow attack speed and heavy reliance on DoTs
Stealth-dodge has long cd (8s cd); only other defensive abilities are the back-dash (12s cd), and, if traited, a block (16s cd)
Middling PvE CC synergy (not great at completing CC chains due to speed)
Effectively jack-of-all-trades
Lyn exclusive

Blade Dancer (Difficulty: ●●◐○○) Pros:

Exceptional chi management post-rework
Very high sustained damage output
Extremely fast, rapid-fire attacks
Very high AoE damage
Strong CC abilities; only class besides Destroyer that can hold a target down for 6s
Highly mobile: has the strongest movement speed boost on a spammable charge, will always win in a foot race
Spin-to-win - can provide immunity to daze, stun, and KB, increase movement speed, increase defense, and/or parry, depending on traits
Relatively easy-to-use

Cons:

Squishy
Spin parry and blade draw deflect have the tightest possible timing (0.5s)
Can be extremely vulnerable without available chi; prone to downtime
Long cds on many key abilities
Force Choke not as strong as destroyers' Seize/Suppress
No party buffs outside of Force Choke
Lyn exclusive

Warlock (Difficulty: ●●●○○) Pros:

Long range (i.e. is not melee)
Highest burst damage in the game, capable of two-shotting opponents in PvP - also happens to be AoE
Strong root, can be used to cheese bosses
Has Spiritualize/Awakening, the most powerful support buff in the entire game
Aside from Spiritualize, also has a number of other useful support abilities
Can summon a useful (temporary) minion that looks cool
Has decently spammable block (1.5-2s duration, 1-6s cd) that can proc one of three CC effects if traited
Exceedingly stylish

Cons:

Quite squishy
Can only block attacks coming from the front
Can be a one-trick pony in PvP, extremely vulnerable if primary burst and CC lock down are somehow avoided
Weak PvE CC synergy (has extremely limited number of stuns)
Pet can be destroyed while or before casting Spiritualize, setting them back - good timing is key
(Subjective) Effectively becomes required in dungeon runs when available due to the outrageous power of Spiritualize
Will not be available at launch