Sigma 8-16mm ND without Matte-Box

Hi Folks,
It's hard for me to decide which wide-angle lense to choose for the EF-Version I preordered.
In my opinion there are just two good options out there (at least until now).
The Tokina 11-16mm and the Sigma 8-16mm. I think there's truly a great difference between 8mm and 11mm on the bmcc (field of view). Although the Tokina stands out for it's F2.8 I kind of like the way of how wide the Sigma looks ( ) . Shooting with the Sigma on Night Shots is nearly impossible. But it's also hard on shooting day exteriors (noon - afternoon) without the use of a Mattebox with filter trays. For documentary work I don't want to use a mattebox and prefer going with a heliopan Vari-ND. Are there any options out there to help this problem out without changing the 180Degree shutter-angle?
What are your thoughts? I know there is lots of footage out there (from both lenses) but there's not a comparison.
It's hard for me to decide which wide-angle lense to choose for the EF-Version I preordered.
In my opinion there are just two good options out there (at least until now).
The Tokina 11-16mm and the Sigma 8-16mm. I think there's truly a great difference between 8mm and 11mm on the bmcc (field of view). Although the Tokina stands out for it's F2.8 I kind of like the way of how wide the Sigma looks ( ) . Shooting with the Sigma on Night Shots is nearly impossible. But it's also hard on shooting day exteriors (noon - afternoon) without the use of a Mattebox with filter trays. For documentary work I don't want to use a mattebox and prefer going with a heliopan Vari-ND. Are there any options out there to help this problem out without changing the 180Degree shutter-angle?
What are your thoughts? I know there is lots of footage out there (from both lenses) but there's not a comparison.