1) Playing style: extremely agressive. Prime example of this is the Gade match - look at how many unforced errors Gade made at the WC05 Semi-final (because of defending), and also look at Lin's Smash winners stats. Stats (Lin Vs. Gade, WC05 SF): Smash Winners: 35 Vs. 27 Unforced errors: 13 Vs. 33 2) Fitness: Lin Dan is one of the fittest, if not the fittest badminton pros at the moment. His constant jump smashing strains every part of the human body, yet, Lin dan can do this for a long time, probably 1 and a half games at a time. This extreme fitness also what makes him win rubber sets. 3) Mentality: Lin always seems to win games which are rubber sets (apart from AE2005, but that was fixed >_>). His mentality allows him to overcome what is really happening and he focuses on playing his game and winning. Check out the semi final WC 05 also - Gade was incredibly nervous and made lots of unforced errors, while Lin only made 3. Feel free to add more people!