IMO, they both use good steel. Grip is subjective, so that's kinda hard to guage. Lockup is highly debated; There are those who say that any liner, for example, is trash. That would, again, be something that you'd have to decide. Price for product, they're both equal.
For folders, like I said, the red class of Benchmade might be along the lines of the average SOG, but I'd say all-in-all Benchmade wins in the folder category. I don't know what SOG's got as far as fixed blades, but as far as Benchmade is concerned they're pricey, and for what they want for a Nimravus or something there are a lot of other knives that I'd rather have. I'm a big fan of Swamp Rat knives in a fixed blade. .