GagaTroll :
I heard 500r comes with bad and loud fans
is that true?
Never heard that about the Corsair 500r fans. I have 2 Corsair cases, the one in my sig and the 300r. They both are extremely quiet with excellent fans. And very well made. But between the 2 cases, it would be a tough call. I don't see the airflow problem the mod mentioned above.
But the CM seems to have a bit more room behind the MB tray. I say seems to, because the Corsair has a huge 'bubble' on the side of the case that will allow a lot of extra room on that side for wire management. See if you can find some online reviews with pics to help you decide.
I guess it comes down to which look the best.