I have owned and carried more knives than I can count since I got my first one at 6 years old.
The one I have settled on for EDC for the last 5 years is the
CRKT M16-13Z that cost a grand $36.
The 3.5" blade is stainless and partially serrated. It opens easily with one hand via a thumb stud without the need for a $200 assisted opening system. (A bit of dry lube on the pivot point makes it really slick). The AutoLAWKS feature turns it into almost a fixed blade when open and is very secure against accidental closure. It is light, carries easily, and has done anything I've asked it to do. It's also easy to sharpen (I just touch up its razor edge with crock sticks every couple of months).
It's also easy to disassemble for thorough removal of dust bunnies and application of anti rust coatings because even stainless steel will rust if you let sweat get under the handle scales and leave it there.
It's fully guaranteed. When the clip screws loosened up without my noticing, I lost the pocket clip. I went on the CRKT web site and used their warranty service page to easily order replacements which were sent for free. I also wore out my first knife's pivot and lock to the point where it wouldn't stay all the way closed. I sent the whole knife back and instead of repairing it they just sent me a whole new one.
I've still got a drawerful of other knives, some of which I use for special purposes (e.g. a heavy duty folder for hunting or treks into remote areas) but the M16-13Z is the one that's in my pocket day in and day out.
I should also mention that I constantly look at new knives coming out on the market, and examine and play with them at gun and knife shows. I've yet to see any that have tempted me to change.
Just my $.02. YMMV
)