I'm 6' 3" male, large hiking stride, brisk pace (speed hiker). Need new winter hiking boots that allow for a brisk pace, waterproof, reasonably insulated, lightweight, good traction. Narrow, low-volume foot. Don't need my feet in sweat soaked boots. I'm in Massachusetts. I'm doing an average of 5 mile circuit hikes as long as the snow isn't excessive.
On Merrell's recommendation....eying the Merrell Thermo Rogue-Mid GTX or Merrell Thermo Freeze Mid waterproof and/or the LaSportiva Crossover 2.0 GTX.
It's a toss-up because of the materials they use. No two are the same. Thermo Rogue is said to be their upper end boot and Backpacker.com gives a good speed hiker type of review (Editor's Choice 2018) with a tested temp rating to 10 degrees in Iceland. 100 grams of insulation, but it's a unique GTX / gel insulation, so I'm told not to let the 100 grams be misleading. "100 grams of Primaloft® Aerogel lightweight, low bulk insulation traps in heat even when compressed."
Thermo Freeze has 400 grams of a more traditional insulation, 400 grams M Select™ WARM lightweight, low bulk insulation. Temp rated to 0 degrees.
LaSportiva Crossover gets very good reviews for being a winter trail runner / speed hiker. Gore-Tex® Extended Comfort / Gore-FLEX.