I have an old pair of Dunlop Grandtrek AT23 tires on my 2003 Land Cruiser. The Grandtreks are average, nothing spectacular or worth buying again. Should I upgrade to the Michelin Latitude Tour HP's or the Michelin LTX M/S 2's ? Both of these are highly rated by Consumer Reports, Tire Rack, user reviews etc. I have 18" rims and never go off road. I also have a Honda Odyssey, and for her, I have a set of Michelin Defender all-seasons and a set of Michelin X-Ice snow tires. This gets expensive for a Land Cruiser, so I want to spare myself the expense and just have a very good set of all-season tires. Which Michelin would do better on ice and snow covered highways? Thanks!