I have the same issue as OP. I started playing only recently and tab targeting behaviour immediately struck me as something not working quite right. I played a lot of MMOs these past 10 years or so and I don't think I had this issue anywhere else. All of them had some sort of fuzzy logic frontal cone nearest to farthest logic. This is the first MMO where I am quite literally struggling to target what I want when I want.
I play with practically constant mouse look (ie right button pressed down) so falling back to mouse clicks is out of the question, I need a reliable targeting method. And having 4-5 keybinds to target things (ie default(broken) Tab, nearest, cycle enemity list...) is just wrong, how come in the other MMOs all I needed was 1 properly functioning Tab.

option like "use intelligent targeting" ?
This is exactly what we need.