Fw190. If I had to go for a definite model of the series (that saw some meaningful combat), Fw190D9.
-Meanest looks in a WW2 fighter
-Hard hitting, highly reliable, easy to maintain weaponry.
-Adaptable to a lot of weapon configurations in mere minutes.
-modular construction, easy to build in mass numbers.
-design focused on easiness of mainteinance/repair allowing for very good serviceability rates.
-highly adaptable to any role (from recce to bomber destroyer)
-High performance challenging or surpassing the best fighters of the opposition until the end of the war.
-Highly maneouverable at high speeds
-best roll rate of any fighter of WW2
-Light, well harmonized controls.
-Very good cockpit layout
-Very good visibility for the pilot
-automatic engine control, allowing the pilot to focus on flying the plane, undisrupted by the needs to vary rpm or fuel mixture depending on the moment
-good to very good acceleration/climbrate (depending on the version)
It also had some weaknesses, such as the high wingloading (poor low speed maneouverability), and the general loss of performance over 18500 feet in the A series (later fixed by the D series, and completely solved by the Ta152 variants). All in all it was a supreme fighter and one of the best, if not the best, fighter of WW2.
Is my plane of choice in WW2 air simulators (Ranging from Aces High to Il-2 series). And I simply love it