Haven't wore jeans since the 90's, though oddly enough I do wear denim shirts. When it comes to pants, I tend to find something I like, buy a bunch in various colors, and wear the same kind daily for years until I find another that suits my needs better. I like pants that have dedicated "knife pockets", though I rarely use them for knives. I clip my knife in my front pocket like normal, and find these other little side pockets ideal for things like flashlight and multi-tool. In fact, I've fount them to be the ideal way to carry a heavy multi-tool unobtrusively.
Right now and for the past few years I've gone with the Vertx Delta as my daily wear pants. I like them because they look just like regular pants but have all of the pockets that I need, and are rugged enough but comfortable. They wear pretty much like a pair of jeans (no cargo pockets), but with a touch of stretch for activity. Unfortunately Vertx doesn't always offer them in colors that I like, but the several pairs I've had from a couple of years ago in other colors have held up well.
Before those, and the ones that I still wear hiking in cold weather and when I'm doing projects, are the Tru-Spec 24/7. I find them good quality for the price, and they have convenient pockets for my needs (most importantly being the aforementioned "knife pockets"). I've even had some of these cut off and hemmed into shorts by a seamstress for summer wear, as I like my shorts to fall below the knee.
Here's the Vertx Delta (the Swisstool doesn't stick out of the pocket like that, that was just for reference in the pic)
Similarly, the Tru-Spec 24/7
