These are my picks/nominations using the same categories as last year.
(moment of the year)- Wawrinka wins AO or Wawrinka defeats Djokovic at AO
(best forehand)- I think this should go to Federer this year
(most improved player)- Wawrinka, Cilic, Nishikori, maybe Dimitrov, RBA won this award on the ATP website btw.
(match of the year)- Djokovic vs. Federer Wimbledon
(worst sportsmanship)- 3 guesses and the first 2 don't count. Seriously, Fabio Fognini by a landslide
(best sportsmanship)- This one's tough. Maybe Federer, Robredo

, Nishikori, I don't know really
(biggest letdown player)- Rafael Nadal, easy one. Not completely unexpected but still easy
(most exciting masters)- Indian Wells, or Toronto, maybe MC? (if it counts)
(best 1handed BH)- Stan Wawrinka probably still wins this
(best 2handed BH)- Winner!- Novak Dokovic, or Kei Nishikori
(Best Serve)- Karlovic for that ridiculous Basel performance, Raonic, or Fed
(Slam of the year)- All of them could be nominated this year. I think I would pick Wimbledon just for the epic final, plus Nadal played it.
(Worst Masters)- Cincy, or Madrid. Probably Madrid.