Personally, I like watching virtually all of the Winter Olympic sports - and admire the bravery, skill and endurance of the athletes involved.
I think events like the snowboard/ski cross and half pipe etc are really exciting and the tricks breath taking - some of the best sports to watch out there imo.
The downhill, ski jumping, luge, skeleton and bobsleigh are all so dangerous and so very impressive (just put yourself in their position for a moment.
Curling so much more exciting than crown green bowls - chess on ice with (as said above), some fascinating tactics.
The endurance levels of the biathlon competitors is something to behold. I believe that competitive cross country skiers are considered by many sports scientists to be the fittest group of athletes on the planet - just look at the state of them when they finish! No hiding place in those events.
The ice hockey can be exciting and often brutal.
I like the carnage that often happens in the speed skating races.
Probably my least favourite events are the figure skating ones - very skilful but the "dancing aspect" of it just isn't for me
Overall, a higher percentage of it is more enjoyable to watch than the Summer Olympics, I would say (although I enjoy that as well).