For a complete newbie i think the best plane to learn in is the Zero. It will teach you the FM of the game and give you a basic feel in combat.
Once you get a feel for the FM of the game, move up to the Spitfire IX. This will give you a feel for faster flying & fighting, as well as a feel for the most common guns in the game (20mm and 50 cal)
Then move to the P-51, it will teach you energy management.
Finally, when you're up for graduation, hop on to the P-38L , if you master that plane, you will master any other with ease.
And whatever you do, stay away from the N1k, it teaches very bad habits. Not to mention its a loser ride
