Arctic Cat M8000 Limited 153:

Since the introduction of the ProClimb mountain machine in 2012, Arctic Cat has focused on inproving the subtleties that add to the enjoyment in the backcountry. This is the most improved sled in my opinion and has dropped a total of 18 pounds from last year's edition. This is a huge advantage and made the sled ride better, but it still felt heavy and was tough to sidehill. This might be caused by the Fox Float shocks that may need to be readjusted differently. Overall I think this is a good sled with the most attractive design, but is the 3rd best sled out of the three.
Ski-doo Summit X 154:

After several years attempting to improve on what was basically a snowcross racetrack-built XP sled, Ski-doo went back to the drawing board to make the sled better in deep powder. This sled seemed very tippy and required an always on your toes style of riding. This machine was the most fun in the trees because it felt easy to manuver. In my opinion this is a great sled in all conditions and is the 2nd best sled out of the three.
Polaris Pro-RMK 155:

Polaris needed to change very little for 2014 to remain its spot atop the leader board in the mountain segment. This machine is the lightest mountain machine out there and had the most power out of the three. The skis are almost always not touching the snow when going up hills and through trees. I felt like I had the most control when riding this machine which added to my confidence. Also, it maintains its line across ruts which is a huge benefit. This machine proved to be the best mountain machine with the others close behind.