love the 3x12 burris.....got 6 of em :shock:
as a cheaper option(around $150)......i'm liking the 2x6 bushnell trophy scope pretty dang good so far. it does have a different type eye relief as you turn up the power. it doesn't shorten as much as the burris, but you can shorten it up by adjusting the rear ocular lens(screwing it out). it is now more handy for my personal shooting stance/style.
my 3 picks for scopes are a 3x12 burris, 2x7 burris, and the 2x6 bushnell trophy, depending on money available at the time and it's intended use.
leupold 2.5x8's are great of course, but kinnda above what i usually want to spend.