Which Bat should i choose?

Hey,

I'm going to a professional table tennis selling store in Hong Kong run by the Chinese. My parents were at first going to go to a normal store. But they have seen my improvements and interests in the sport. I'm have 3 more months till i go the store.

I'm rougly at intermediate level. I'm mainly an attacker, but defend when i need to. I really like spinning the ball, but i like speed, power and control.

Which type of bats should i seek out for? Which one will be suitable for me for a couple of years? I do not want to keep changing bats. I want one that will be with me for a while (2-3 years).

Thanks.