The discussion of exclusives on PC brings up the subject of what people really mean when they mean "exclusive".
What a lot of people actually mean are big-budget exclusives that get big marketing campaigns, and are usually first or third-persion action games. PC still has the most exclusives, it's just that most of them fall out of that narrow designation, which sort of makes them invisible to most gamers, regardless of how good these games actually are.
All the strategy games, sim games, CRPGs, and adventure games sort of occupy a different world, aren't as high-budget most of the time, and aren't marketed as aggressively, but are honestly probably still just as valuable in terms of gameplay time as games like God of War or Smash Bros. And most of these PC exclusives don't need expensive GPUs to run. On one hand that makes them look less attractive to people who just play AAA games, but on the other hand that sort of makes them more accessible to anyone who owns a computer.
People just say PC doesn't have attractive exclusives anymore because you no longer need one to play flashy games like Crysis, The Witcher, Half-Life, Battlefield, or Civilization. Ironically though, two of my favorite PC exclusives right now are Arma 3 and Space Engine -- two very technologically ambitious games.
Those games are usually high production value, with large budgets to market them, and can reach outside the hardcore market. Mid-sized to smaller games, even if they offer more fluid design, a better story and more innovation...won't win because they'll have been seen by less people, and the people that play those lesser known games on average will have played more games that year splitting their potential vote. Then there are the people that equate production values with quality, and will judge games with weaker production values as overall weaker experiences.
Yep. When I actually sat down and thought about it, I realized my favorite game last year was Obra Dinn.