The stats are listed in game for orks and Space Marines. Look at the stat screens..

They're the same. They have the same armor, the same health, the same toughness, and the same melee damage and speed (except for the power fist, which orks do not have).

https://en.wikipedia.org/wiki/Confirmation_bias
https://en.wikipedia.org/wiki/Placebo

ork are strong , especial teh ones with axes .. like he jump near a guy and in 2 sec he kill it buahaha

1) Orks are far from unbeatable in melee.
2) Ork melee is supposed to be the best in game.
3) Ork shootas are supposed to be the worst in game.
4) Nothing wrong with orks having same armor ratings as SM, there needs to be balance and its much easier to hit these squared mushrooms then ceramite tin cans.
5) Shoot at them, bolters destroy orks, any ranged weapon destroys orks.

Dem slugga boyz are ded 'ard in melee if propa fitted.

Is ork melee supposed to be the best in the game? I thought we were going to end up with eldar good at close range and long range, LSM good at medium range and long range, Chaos good at medium range and melee and orks good at close range and melee range.

Orks should, by default, wear 'Eavy Armor as this gives them at least the same Armor Save as an Eldar Aspect Warrior.

Spoiler

With proper stat translation from TT/Deathwatch RPG/etc. etc.:

C/SM: 66.8 Armor Value, 40 HP
Ork: 50.1 Armor, 40 HP
Eldar(Heavy Aspect Armor): 66.8 Armor, 30 HP
Eldar(Aspect Armor): 50.1 Armor, 30 HP

C/SM Move Speeds
Forward: 6-ms
Strafe: 5-ms
Back-Pedal: 4-ms
Sprint: 12-ms

Eldar Move Speeds: Base / Fleet of Foot
Forward: 7.5 / 9-ms
Strafe: 6 / 7.2-ms
Back-Pedal: 4 / 4.8-ms
Sprint: 15-ms / 18-ms
Fleet of Foot should temporarily increase the Eldar's move speed by 20% in return for increased recoil and bloom.

Ork Move Speeds: Base / WAAAGH! 1 / W!2
Forward: 6 / 7 / 8-ms
Strafe: 4.5 / 5.3 / 6-ms
Back-Pedal: 3.5 / 4.1 / 4.7-ms
Sprint: 12 / 14 / 16-ms
Orks should have an Active WAAAGH! ability that temporarily buffs them and nearby Orks with increased move/attack speed and reduced ammo consumption.
Orks should passively provide a portion of the Active buff and be able to stack up to 2x the buff, providing not only twice the base benefits but possibly adding others such as HP regen, recoil reduction, etc. etc.


Bolter TTK vs C/SM: 1.75-sec, 8 Bolts, 0.25-sec Fire Rate
Bolter TTK vs Ork/Eldar(HAA): 1.5-sec, 7 Bolts
Bolter TTK vs Eldar(AA): 1.25-sec, 6 Bolts
Accuracy: 3.4-cm spread at 24-meters
Major Damage Drops: 48 and 96-meters

S.Cat TTK vs C/SM: 1.265-sec, 12 Shuriken, 0.115-sec FR
S.Cat TTK vs Ork: 1.15-sec, 11 Shuriken
Accuracy: 4.6-cm spread at 24-meters
Major Damage Drops: 36 and 72-meters

Shoota TTK vs C/SM: 1.26-sec, 8 Rounds, 0.18-sec FR
Shoota TTK vs Eldar(HAA): 1.08-sec, 7 Rounds
Shoota TTK vs Eldar(AA): 0.9-sec, 6 Rounds
Accuracy: 6-cm spread at 24-meters
Major Damage Drops: 27 and 54-meters

Eldar and C/SM should be relatively balanced in ranged combat, Eldar having the advantage in close range but C/SM having the advantage in long range, so their weapon TTKs are relatively the same.

Orks should typically be worse at both medium and long range than C/SM/Eldar so their weapons' higher FR gives them a TTK/close range advantage. WAAAGH! buffs(I.E. reduced ammo consumption) can help even the odds in medium range combat.


C/SM Combat Knife TTK vs Ork Boy: 2.1-sec, 7 Basic Attacks, 0.3-sec Attack Speed
Ork Choppa TTK vs C/SM: 2.4-sec, 2-sec, 1.6-sec, 8 BAs, 0.3 / 0.25 / 0.2-sec AS

Off base stats the Ork is at a disadvantage to the C/SM but as their WAAAGH! buff grows the odds even/swing in the Ork's favor.


Eldar Combat Knife TTK vs Ork Boy: 2-sec, 10 Basic Attacks, 0.2-sec AS
Ork Choppa TTK vs Dire Avenger: 1.8 / 1.5 / 1.2-sec, 6 BAs, 0.3 / 0.25 / 0.2-sec AS

Despite the base TTK disadvantage the Eldar's greater speed should give them a slight edge against the Ork, while WAAAGH! buffs bring the advantage to the Ork. Eldar should generally perform better against Orks in ranged combat than C/SMs do, while C/SMs should generally perform better against Orks in melee combat than Eldar do.


C/SM Combat Knife TTK vs Dire Avenger: 1.8-sec, 6 BAs, 0.3-sec AS
Eldar Combat Knife TTK vs C/SM: 2.2-sec, 11 BAs, 0.2-sec AS

Eldar/C/SM should be relatively balanced in melee combat as the Eldar's greater move/attack speeds should allow them to avoid/launch/land more attacks than their enemy.