Wow thats a lot of valuable information for me. Thank you all so much for your answers. It seems to me that everybody agrees on Bf109 which is the perfect match what I have in heart as I usually fly Bf109's in other sims. %80 percent. Actually my favorite WW2 airplane is the Fw190 but it is tricky in dogfights. You cant jump in to a dogfight with Fw190 unless the odds are on your favour. This makes Bf109 more playful which makes sense that I find myself flying the Bf109 %80 percent.
Though I admire the beauty of the Spitfire but I never favor it in a dogfight (personal taste).
With your help here is how I arranged my shopping list.
1. Bf109 (More common and my default never go wrong fighter)
2. Fw190 (Personal favorite, excellent roll rates make it a unique fighter for whom to be able to master)
3. Spitfire (A legendary beauty, +has the Epsom compaign to spice up)