I'm a firm believer in the large Grip, but the mini doesn't work at all for me anymore. The mini, like a lot of people here, was my gateway knife. I carried it for almost three years before I bought another knife, but I'll never go back to it. Please don't get me wrong, it's an awesome, great, knife, and may be perfect for your needs, but you asked for opinions.
For me, it's the handle length. I'd rather have all four fingers on a handle and there are so many other knives that'll do this.
If you want to stay Benchmade and remain cheap, check out the Presidio Ultra, if it's still made, I'm not certain. Maybe even the full size Grip. Or just look at the site and find anything with that glorious axis but a longer handle.
The Chaparral is awesome too, and between just those two, I'd choose it. But, I'd still look hard at many other Spydies.
Again, the mini is tough and functional, but there may be other choices that are just as tough, but more functional and possibly even cheaper.