For what it's worth to someone, I'll put in a good word for the Firestone Weathergrip. I took the stupid 19" tires off of my 2019 Ford Fusion AWD and put 225/60R16 Weathergrips on for my 3 season tires. I run 215/65R16 Hankook Winter Ipikes studded for winter use, but I've been trying out the Firestone Weathergrips in winter conditions to get a feel for their capabilities. I usually experience snow on the road at times for 11 months of the year, so I was looking for something that could handle that well during the summer months.
For summer conditions, I have to say that I absolutely love this tire so far. It's very quiet, has a nice ride, and is much nicer to take a normal drive down the highway on than the over-responsive 19" stock Continentals. The tire does extremely well with standing water, and has plenty of wet grip. If I was building the car, this is the setup I would have put on it. 16" is not cool, but won't leave you walking just because you didn't see a pothole, and walking when you want to be driving is also not cool. There's still plenty of performance for street use on winding roads.
In wet slush, the Weathergrips might even be a touch better than the dedicated winter tires, despite being a size wider, likely due to the more open tread pattern. I have noticed that one area where the current generation of dedicated snow tires is worse than the howling, open treaded snow tires of 30 years ago (Wintermaster, etc.) is slush.
In snow, particularly dry snow, the Weathergrips are very good. Maybe too good...
Ice, particularly wet ice, or slush with an icy bottom, is the weakest point. I'm not really comfortable with the drastic change from very good snow traction, to the poor ice traction. In a bare pavement sun to snowy shade transition, there's a disconcerting zero-traction jump as the icy transition is crossed. To be fair, I'm comparing to the studded winter tires I'm used to driving on, but these are definitely not a one tire for the whole year solution for me. If you had slushy, heavily treated, roads to drive, and mostly a difficult snow filled driveway or parking lot that was the problem, these might be ticket.
I think these tires are a good step up from the usual all-season, but still a fair step down from a dedicated winter tire. I guess the best example is that I pulled up to my rural mailbox a few days ago on glare ice, as I've done countless times. I soon realized that the car wasn't going to stop in time on these tires. I got off the brakes, and steered around the impending collision. So, the bad news, they didn't have the traction to stop in time. The good news is they did have enough traction to steer around the mailbox.
I, and my mailbox, are looking forward to the switch to the real winter tires, sometime very soon.