Man that's a tough one. The SS 5-20 I have has been punished, and keeps on keeping on. That's what we were shooting 1575 yards with. The glass is very, very good. I dare say I'll never sell it.
The Burris has better features though. The turrets are better, it comes with a sunshade, comes with Burris scope caps (which are awesome) the illumination turns itself off after two hours of use. It's a heavy sucker, though. The 34mm tube gives it lots of travel, and lots of strength, but it makes it weigh more.
I would need a Burris 20X to compare glass clarity side by side with the SS, to make a sure determination on which one is more clear, or if they're even. If they are even in clarity I'd go with the Burris.
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