You can't go wrong with Spyderco, Emerson, Kai/Zero Tolerance/Kershaw or Benchmade. What are some criteria that you're looking for? i.e. blade length, weight, materials, steel, etc
Know that Emerson's have chiseled edge, so the edge is not a traditional V-grind. They do make tough liner locks. Their blades are on the softer side, so they will be tough and less prone to chipping. However, soft translate into less edge retention. I haven't had any experience with their customer service, so I can't comment on that. You could wait a little while and check out the Kershaw-Emerson collaborations. The ZT 0620 models are very very nice looking and looks very promising. It's a little extra, but it'll definitely be quality in the ZT line plus it's a frame lock.
If you're grabbing a Benchmade then I would recommend you looking into the grip family, the 710 and the 940 series. Axis locks are hard to beat, but recent QC issues can make them hit or miss. I haven't experienced any and I believe that they have the best warranty in the industry.
If you're grabbing ZTs then just pick one you like. They are quite beefy and tough. My favorite ZTs are the 0777 and the 0801. 0801 is a lot of bang for the buck for under $200. I know it's going over your budget a bit, but look at what all it comes with: KVT- ballbearing system for smooth and fast deployment, two full titanium slabs, and Elmax which is an awesome steel. The knife is quite stout so it can take some abuse as well. They do have a pretty sweet warranty as well.
I'm a bigger Spyderco fan than I am of the other companies because they offer up quite the variety in terms of design and materials. Heck, you can get a waved knife from Spyderco. Know that Spyderco knives are design for cutting tasks, so the stocks will be a little thinner and the blades will be ran harder than other knife companies. You'll get better edge retention, but you'll also run the risk of chipping depending on the steel. You can always expect quality, and if it's anything less their warranty department will take care of you. Spyderco: Paramilitary 2, Manix 2, Military, Gayle Bradley, Superleaf, Endura, Delica, and Stretch.