Binocular power?

[Baylian]

Hey guys,

I live out west where we have a variety of conditions (glassing from hill tops to black timber) and long walks to get to the game. Which power do you think would be the best for these kinds of situations: 6x30, 7x35, 8x32, 8x42, or 10x42? Please state why you think so. If I left off a significant power group please feel free to add it and comment on it.

Thanks in advance, TJ