I think it's a bit ridiculous to ask people on here which bat is for you. I bought a GN Powerbow for this season and its perfect for me. This does not mean it is perfect for you.
Here's what I look for when looking for a bat.
1. Where is the sweet spot? I tend to hit the ball low on the bat due to the clay surface prevalent where I live and the Powerbow in that sense for me is perfect, it has a very low middle. I had a net with somebody a few days ago and he said he hit the ball very low too, however, some throwdowns showed this was not the case. Get somebody to do the same with you, preferably with a bat you haven't used before. This will show where you tend to hit the ball, and this will allow you get a bat which suits you.
2. How many grains does it have? The more grains the better. With cheapy grade 3 willow you'll see around 4 or 5 grains, whereas the top players have around 11-12. This is due to the wood being older, grown slower, and therefore less likely to crack in a major way.
3. Are there any knots in the bat? Try to avoid buying bats with knots near the middle of the bat. Knots make the bat denser, and as such the ball doesn't bounce as well off it. Knots around the shoulder area are of less concern.
4. Get into your stance and play a few defensive shots and a drive or two. Does it feel comfortable? If not, it is not weighted for your style of play. Going back to my Powerbow, it had a nice pickup to it that suited me. I picked up a Slazeger SXi and instantly felt uncomfortable with it. This isn't to say the Slazenger is a poor bat, it just doesnt suit my wristy style of play.
5. What price is it? This may sound a bit strange to put last, but with a bat that is going to last you a few years at least, it is best to spend 100 quid on a bat that you fall in love with than buy a 85 quid one that feels a bit weird. That 15 quid can be the difference between you playing the game year in year out and giving up.
The point really is that just because Freddie uses a Woodworm, and you like him, doesnt mean you should buy a Woodworm. First of all in Flintoff's case his bat is nothing like retail Woodworms, it is custom made. Secondly he is almost certainly of a different style and physique to you, and his particularly bat may not suit you. All I can say is, if you are committed to buying a bat, go to a store and try them all, regardless of how popular they are. If somebody says "Buy a such and such" then I beg of you to ignore them.
Almost_Austwick is right though. If at your age you haven't really developed a batting style and are not committed to playing the game year after year, its best to save yours (or your parents) money and wait.
