Hi
If your intended purchase of a 12" reflector is for visual why wouldn't you want a dob mount? EQ mounting will see you twisting around to get to the eye piece in my opinion. If you want the benefit of go-to buy a go-to dob. I have one and it is fantastic. Of course if you are intending to image then ignore all of the above
. Then you will be entering in to G11 range of mount definitely not EQ6/NEQ6 it will frustrate you no end.
Good luck with your choice and I hope your skies are clear after you get it.
Wayne