Tang style is usually a bit of a progression.
Many folks start with a full tang, full thickness. It just needs to be profiled, drilled, and the scales simply can be drilled with the tang as a guide.
Going to tapered tangs is a step up as it requires grinding or machining the taper, and a little bit of fixturing to PROPERLY drill the holes through the scales with the tang tapered.
A hidden tang adds the need to file or machine guard shoulders in the blade, as well as a slot in the guard material. These two things are what hold a lot of folks back from trying a hidden tang. I know it held me back for awhile. Of course there are exceptions to this, like how some Loveless style makers cut guard shoulders in their FULL tang and slide the guard on from the tip of the blade.
98% of the time I prefer a hidden tang as it allows me to shape the handle material however I choose at the time of shaping--- where as a full tang's overall handle shape is going to be set at the time of profiling and drilling the tang. Also with carbon steel blades, I can encase the tang this way, so it's not exposed to the oils/blood/crud that the tang would be exposed to in a full tang.
All this is, to me, is not an argument about one being better than the other--- just what's suited to the individual knife.