The Club loft: Until and unless you take place to be a professional golf player, you will certainly shop for a driver having a loft of 10 degrees or more. To get the measurement of the loft, you need to measure the angle of the driver face. If you are beginner, have a golf driver which falls about 10 - 12 degrees. However, the more the loft angle the greater would be the flight of the ball. Therefore experts say that if you want a big drive make sure always go for higher ball travel. Therefore, let alone getting a club with loft angle less than 10 degrees.
Which one to believe- Titanium, Steel or Composite: Generally the clubs are available in Titanium steel or composite materials. Drivers made up of Titanium metal are light and strong and the club face comes out to be pretty thin. Thus they can be called as hit longer golf drives. This makes them costly than a steel driver. Hence your choice would depend on your budget. These days, manufacturers are embarking up with newer technologies where they are seen using both carbon and Titanium. They are also termed as fusion or composite drivers.
Shaft Flex: Mostly, any modern driver comes with graphite shaft instead of steel shaft. When you choose a graphite shaft, make sure you choose for a flexible shaft. If you want to choose with fast swing speed, you will superior go for stiff flex substitute. But when you use the light flex, you get extra bounce which can move the ball with less speed swing. Generally you get a swing speed tool at the store to measure the swing speed, which comes free.
The Shaft length: The last thing you have is the length of the driver. Hence select a shaft length which conforms the body size and arm too. Apart from the stores giving your various measuring equipment to check the shaft size, you can find the same over their websites too, which help you get the proper shaft length.
So when you consider these factors above, you are bound to get the topmost appropriate golf driver. But make sure that you do not get some illegal golf driver as they may ruin your game. So enjoy the game of golf.