I'm a fan of the Benchmade Griptillian series as well. Great knives for the weight. That said, I've been carrying around an Emerson CQC-7 for the better part of the last decade. The are a little pricey to purchase, but they take a licking. Shop around a bit and you can find a good deal. Nice blade size, good weight (under 4 oz.) and hold an edge well. The chisel grind on these makes sharpening a breeze.
http://www.emersonknives.com/ekCQC7b_BT.php