A couple of months ago we ran a survey to better understand the type of content our users wanted to see on the WSGF. One of the questions dealt with which resolutions you wanted to see on our benchmarking. There was a fair amount of interest in bezel compensated benchmarking, but it was far eclipsed by interest in standard non-bezel compensated resolutions. From my personal experience, I haven't found that using a bezel compensated resolutions made any noticeable difference in performance.
Technically, I figured that the slight increase in pixels or FOV would make any noticeable increase in performance. My current bezel compensated resolution is 6040x1080, versus my native resolution of 5760x1080. This increase of 302,400 pixels represents a 4.86% increase in pixel count, and a 1.25 degree increase in the horizontal FOV. All in all, not a huge difference.