Current judging criteria :

(might be subjet to changes, credit to @BogdanX for giving me his complete and fair rating system)

Visuals [10 pts]

          1. How good it looks (Video game quality to elephant artist paint) [4pts]
          2. Livery (overal body painting, realistic colors) [3pts]
          3. Details (sensors, fuselage lines, canopy bars etc) and decorations (insignas, 
              registration text, art, warning signs) [3pts]

Construction [11 pts]

          1. Nudging quality [2pts]
          2. Smoothness [2pts]
          3. Parts efficiency [2pt]
          4. Custom elements (LG, weapons, interior, wing airfoil,controls surfaces) [3pts]
          5. Structural integrity (collision sounds/issues, disconnected parts, elements 
              wobbling/bouncing) [1pt]
          6. Cockpit view [1pt]

Functionality [10 pts]

          1. Plane Stability (auto-roll/yaw/heavy pitching)[3pts]
          2. Flaps/Trimming Presence and Functionality [2pts]
          3. Takeoff and landing, Ease of flight [2pts]
          4. Custom parts functionality (LG, Taxi, weapons,controls, interior 
               controllers/instruments etc) [3pts]

Historical Accuracy [10 pts]

          1. Blueprint match [3pts]
          2. Specs match (dimensions, weight, speed)[2pts]
          3. Maneuverability (Turn and roll rate, acceleration, glide ratio) [2pts]
          4. Specific equipment/features presence and functionality (example: split ailerons 
              for A-10)[3pts]

Impression [9 pts]

          1. Description info (Controls and features explained, Plane data in link or text) [2pts]
          2. Amount of effort invested in this build [1pt]
          3. Fun factor (how enjoyable was the testing) [1pt]

Sub-total [45pts]

"Bonus" points about my personnal impression. [5pts]

Total [50pts]