I started in the F4U-1 we didn't have the -1A in AH yet, and I still enjoy flying the birdcage. I have loved the corsair since I was a kid and naturally gravitated towards them both here and in AW. 109's are my other go to ride. They really fit my flying style and have forced me to be better in things like throttle control where I could be more lax with the corsair. The other plane I really like is the 38. I would like to be better in a 38, but I don't spend enough time in them to be very proficient.
One thing I would recommend is to get with a trainer and work with him as much as you can. A skilled trainer will see things that you're doing, or not doing and give you the input needed to improve. No matter what plane you fly if you don't have the basic skills needed to survive and get into position to shoot the other guy down you will not be very successful and that will become very frustrating for you. Also when starting out you should expect to die a lot. In AH it's o.k. to die as long as you learn something. At first just try to survive, then try to get position, and so on and so forth.
I'm not a big fan of the uber planes for beginners, Sure you can get kills in a spit 16, or -4 hog but they let you get away with bad habits that will get you killed in a lesser planes. Imho it is better to start with one of the lesser marks, such as a spit 8, or -1A and learn to fight in well in it before moving to the top tier plane. That being said there is a world of difference between a spit 8, and a -1A hog and the spit 8 would be far more favorable to someone just starting out as opposed to the hog.