Which binocular sale would be best?

If this is for astronomy, NONE of these is acceptable. The Bushnells are fixed focus somewhere this side of infinity, so everything in the sky will be out of focus. The Nikons have only a 40mm aperture, too small for astronomy. The Celestrons are zoom binoculars, which usually don't have good enough optics for astronomy.

Instead, I'd recommend Orion's Scenix 10x50 at $99.95, which have an excellent reputation:
http://www.telescope.com/control/product…

If prescription medications this is too expensive, you might try Orion's new WorldView 10x50 at $79.95, but I've yet to see any reports on these:
http://www.telescope.com/control/product…