[Vitruvius]

I plan to send underground pvc conduit 150 feet from my house to the 180cm motorized dish. I see there are loads of different type of RG6 cable out there.
Standard Cable
Solid Copper core
Copper Clad Steel core
Quad Sheild protected

I assume the signal is sent down the center wire and believe that solid copper is better than the copper clad steel. Is the Quad Shield what it sounds like, just a shield to protect disturbance of the signal? The more protection the better?
Will standard cable with solid copper core be sufficient for my conduit protected cable? I will be running the power and signal cable through the same conduit, so should quad shield be used?
Is Quad shield with copper clad steel better than normal shielded solid copper core?

You see.. I am a newbie, but just want to get the best possible signal...