I'm not making this up...today is recognized as "National Scotch Day." A nod to Foodimentary via Twitter for bringing this to my attention. How and why it started are questions that I do not have the answers to, but why question it? Just go with it.
First of all, "scotch" refers to scotch whisky (no E). There are single malt varieties (like a Glenfiddich, Glenlivet, any glen) and blended malt varieties (like Johnnie Walker, J&B, Chivas Regal and Cutty Sark).
How should you drink it? Well this question can vary when considering a single malt versus a blended malt, but here is a video (broken up in 3 parts...it's worth watching all 3 if you have 15 minutes to spare) that features a few different varieties of a single malt whisky called Jura, from the Isle of Jura, and arguments put forth from a purist whisky drinker (and distiller) versus arguments from a bartender/mixologist.
You can vote for who you think makes the better argument on Jura's website: click here.