Well I've long said that they should have called Imperial Armour 8 "Armour of Gork (or possibly Mork) vol 1".
I actually find Orks one of the best alien races when done well - the right nuance of their constant need for conflict balanced with a thriving society based around that same driving force. An interesting culture and one in many ways foreign but in many ways similar to our own.
Sadly they are too often portrayed as mindless brutes or dumb cardboard bad guys.