Which winter wheels?

It's that time of year again when I prepare for winter in the Scottish Highlands. I need to buy a new set of tyres, so I am looking for advice from you about what you prefer to use. I have a spare set of wheels, so I want full winter tyres rather than 'all seasons' that can be swapped out when the season changes.

I need tyres that will cope with cold wet conditions and temperatures close to freezing. We often get periods lasting up to a couple of weeks with lying snow on side streets, although the main roads do (eventually) get ploughed. I have the 265PS AWD engine, so there is plenty of power to control. My priority is for safe and comfortable handling rather than performance.

Given those requirements, my shortlist is Michelin Pilot Alpin 5 or Pirelli P Zero Winter 2 based on online reviews. Do you have any experience with these or any alternative recommendations? What have you been pleased with, or are there any tyres that you have regretted buying?