For pure technical shooting, I prefer a single dot over circle and circle dot reticles, such as what is offered on a number of Holosun pistol optics. In low sun angles, the Sig Romeo 3 Max and Romeo 3 XL are head and shoulders above all other choices in terms of a usable dot in the widest range of sun conditions. Of course the R3 Max and XL are competition oriented optics, and not suitable for EDC due to their relative fragility and how they (don't) play with BUIS.
For EDC, I have come to believe a Holosun circle or circle dot reticle is the most forgiving reticle available across a wide range of sun angles, varying light AND with an imperfect index that results in an off center dot. Stick that optic into a low sun angle in the desert, where an individual dot is indistinguishable from sun splatter, and the circle provides a perfect aiming reference. If you have ever shot a legacy AUG much, you will instantly understand the concept of a "donut of death."
The only downsides to the circle and circle dot reticle I have noted is they go through batteries quicker in the 507K which has no auto setting or solar assist. Also, the 509T is unique in it offers a dot and circle dot, but not my preferred circle.
If you haven't messed with just a circle reticle for EDC, check it out!