I think the answer for you depends on which camera and lense you have, and whether you use manual or auto focus.
In my case, I have a Ursa Mini Pro, which already has an infrared filter built in. And I only use manual focus lenses. As a result, I am happy with the Schneider Linear True-Pol polarizing filter. However, if instead I were using auto focus lenses, a linear polarizing filter might interfere with the auto focusing mechanism.