Best - usually insulated and very durable, has tech features
Frigid - premium insulated, ideal for extreme cold
Leather/Synthetic - usually leather palm, synthetic backing
Synthetic - man made material replicates the qualities of down
The Hestra Heli Glove is a great idea for any skier that worries about cold fingers and warmth on your hands. The Snow Lock will keep a firm wrap across your wrist and not allow any snow to enter inside the glove. This highly waterproof and breathable glove has a three-layer Polyamide fabric and a cowhide palm that is extremely durable. The Eagle Grip will give you a fatigue free and comfortable grip on your ski poles, even in the harshest conditions. Hestra's Handcuffs will make every chairlift hands-free and ensure that you will not lose a glove in the woods under the lift.
Gloves are warm enough for me down to about 10 degrees than I need to add hand warmers. Make sure to use waterproofing and leather protector to keep them good for years