My experience with Benchmade, both what I own and ones owned by friends and acquaintances, has been uniformly positive. When I bought my 20CV/G-10 Mini Grip, I assumed that I'd have to sort through several at the retailer to get one that was evenly ground and locked up and was centered (based on what I read here), but the first one I picked up was perfect. (I looked at a couple more just for the fun of it, and they were all fine - I would have been happy to buy any of them.)
I've known hard users of knives for a lot longer than I've been on this forum - not "knife guys" but people who, by nature of their jobs and/or hobbies, go hard on knives. There are a few Kershaws, a few slipjoints of various vintages, and a lot of Benchmade Grips and Mini-Grips. (Lots of local gun shops carry both sizes of Benchmade Grips, big box stores often have Kershaw, and the local hardware stores usually have Case, so this mix isn't too surprising to me.) There will be a small number of other things - CRKT, Gerber, Cold Steel, etc. Spyderco and GEC only seem to show up in the hands of people who care about knives themselves, instead of just having a cutting tool.
Until I started spending time on BladeForums, I'd never heard of or seen omega springs failing in either size Griptilian. And this is watching them in the hands of people who do not baby their knives at all - I'm not talking about safe queens here.
But I come here, and I see people say, "every Benchmade knife I've ever owned has failed". It's weird - people I know who have one knife and use it hard a lot, no failures. People who have large collections of knives that they rotate through, and know enough to not abuse them, they all fail.
I don't want to discount anyone's experience, but there really is an interesting disconnect between what I've observed for decades and things I read here.
All that aside, Spydercos are great knives, too. Buy what you like. Either brand will serve you well.
-Tyson