I have tried the Comfortreads, Triple Treads, Yokohama Avid Touring, Toyo 800 Ultra, Falken 512's & even spent a week with a car that was equipped with the Michelin Hydroedge. Have I tried them all........no, but I have tried many more than the 'average' driver has & some of the best rated to boot. ;)
Again, you won't find the 'perfect' all season tire that does everything well in all weather conditions, but you can come fairly close all things considered if you don't want to invest in a set of winter rubber which you have stated in the past that you don't.
One thing I found very intresting on tirerack was how many Subaru owners (a 'cult' type of brand as opposed to 'mainstream') went with the Triple Treads.......almost as many as Toyota owners with very good feedback. B)
The new Yokohama Avid TRZ looks intresting as well, but no personal experence. B)