A few comments on the Primacy MXV4's. I ran a set on my '07 Ford Freestyle AWD for about 40k miles. Probably the smoothest tire I've ever run - handled wet and dry extremely well. I never really gave them a chance in the winter, since I ran dedicated snow tires on the vehicle. But I did run through a couple of early spring storms a couple years ago and they did okay, although in deeper snow I'm not sure they'd be up to par.
The Latitude tread design, while a bit more aggressive than the MXV4's, isn't necessarily something I'd want to run all winter up here. They're similar to the tread pattern on the Bridgestone's that came on the MDX I'm running now. The did decent during the couple storms we had this winter, but after wearing a bit I'm not sure I'd go with them through another season.
My options are twofold. I either run a more agressive all-season tire - like the Nokian WR G2 SUV - or pick up a set of winter rims and run a set of Nokian Hakka R's, and then keep running the bridgestones during the other 3 seasons. Will have to decide that before winter...
Andy from Southern NH
2012 Acura TL SH-AWD Tech - Wife's, 17k miles, White
2013 Acura MDX Base - Mine, 14k miles, also White
2014 Honda Accord LX - Oldest kid's, new, Black
Previous Honda/Acura family vehicles:
2012 Honda Civic LX Coupe
2006 Honda Pilot LX AWD
2005 Honda Accord LX
2004 Honda Pilot EX-L AWD
1996 Acura RL
1993 Acura Legend L
1991 Acura Integra GS coupe
1990 Acura Integra LS sedan