AIM Charter is a style-blind fund. Its managers are comfortable buying either growth or value names. Senior manager Ron Sloan seeks the same thing in either type of stock: strong companies. Most buys for his $5 billion portfolio are of temporarily nicked up stocks, trading below what his team calculates is their intrinsic value. But if he finds a stock able to grow a lot faster than its peers, he is willing to pay a premium. "In today's world,