These goggles hands down solved all the problems I had with my previous pairs, I'll break it down
-EG2: Fogged almost instantly in all conditions except bright sun, couldn't wear a helmet or face mask as both made the fogging much worse
+Phenom: Never fogged on me all day, from a little rain in the morning, to getting pow blasted in my face while riding, to a break in the clouds, to hiking a little uphill and getting pretty heated while wearing my variant brim, to the blistering cold after the sun went down these didn't fog once!....and all in the same day!
-Mace: Really heavy and stuck out way far from the face
+Phenom: Totally light and have a low profile fit
-Fenom (VZ): bad selection of low light lenses
+Phenom (Smith): Sensor mirror is INCREDIBLE!!!! I've never seen a lens that can make the surface appear brighter and more natural looking in cloudy "blue" light, it's like shining a flashlight on the entire mountain, even at night I've never been able to see so clearly, much better than VZ's blue night lens
-A Frame: terrible pressure on the forehead and just tiny all-over
+Phenom: It's been a while since I had my A Frames but these are about the same size if I remember correctly, they provide a more even fix because the frame appears to distributes it's size horizontally instead of vertically, giving you more side to side vision and keeping pressure even and off the forehead
The only con I can think of for these is the lack of mirrored lenses, but other brands have those covered pretty well. If you want pure function then these have to be the way to go.
After riding in these two days I sold my EG2's and bought another pair with the Platinum mirror lens. I've been sold on Smith's optics, they don't mess around and really know what they're doing instead of just trying to look cool