Which one has better low light capability because it's going on my coyote rig. I want and tough and dependable. I have a few leupolds but the hd5 sure sounds nice. Any recommendations ?

I would get the HD5 of those two, but for a little more a VX6 would be better, IMO

Thanks

HD5 has better glass but the vx3 is no slouch either.

What about a vx- 3 with a 30mm tube?