People keep asking me about things, loads of things and most concern on mind is gear. I have read a lot and here comes basic stats on classes, but I think some them are pretty high to get before Karazhan, so don't worry so much. If even close, it's good.

Class - Sub-type - Health - Mana - Other

Druid

Boomkin - 6,000 - 7,000 - +600 Spell Dmg, +75 MP5, 15% Spell Crit in Caster form

Healing - 6,000 - 8,000 - +1000 Healing, +90MP5

Tank - 12,000 - N/A - 20,000 Armor, 415 Defense with 3 points in survival of the fittest, 30% Dodge

Hunter

Beast Master - 8,000 - 6,000 - 1500 AP, 18% Crit, +75 to hit

Marksman - 8,000 - 6,500 - 1800 AP, 18% Crit, +75 to hit

Mage
All - 6,000 - 7,500 - +600 spell Damage, 25% spell crit, +90 Spell Hit

Paladin

Retribution - 7,000 - 5,000 - 1400 AP, +300 Spell Damage, 20% Crit

Healing - 7,000 - 8,000 - +1000 Healing, +90 MP5, 15% Holy Spell Crit.

Tank - 10,000 - 4,000 - 490 Defense, 12,000 armor, 102.4% avoidance (while HS is up add dodge/parry/block and miss), +150 spell damage.

Priest

Shadow - 6,000 - 7,000 - +650 Damage

Holy - 6,000 - 8,000 - +1000 Healing, +90 MP5

Rogue

All - 6,000 - N/A - 1400 AP, 20% Crit, +90 to Hit

Shaman

Melee - 7,000 - 6,000 - 1100 AP, +70 to hit, 20% Crit

Healing - 6,000 - 8,000 - +1000 Healing, +90 MP5, 10% Spell crit

Caster DPS - 6,000 - 7,000 - +600 Spell Damage, +60 Spell Hit

Warlock

Affliction - 7,000 - 6,000 - +600 Spell Damage, +90 Spell Hit

Demonology/Destruction - 7,000 - 6,000 - +600 Spell Damage, 20% Crit, +90 Spell Hit

Warrior

DPS - 7,000 - N/A - 1700 AP, +70 to Hit, 35% Crit.

Tank - 12,000 - N/A - 490 Defense, 12,000 armor, 45% Avoidance (Dodge/Parry/Block/Miss added)