While fading effects have long been combatted in 2G wireless networks, primarly devoted to voice calls, they are now seen as an opportunity to increase the capacity of 3G networks that incorporate data traffic. The packet delay tolerance of data applications, such as file transfers and Web browsing for instance, allows the system flexibility in scheduling a user's packets. Opportunistic scheduling ensures transmission occurs when radio conditions are most favorable. This paper discusses different resource sharing strategies and presents some shortcomings of the classical Proportional Fair opportunistic scheduler. A new algorithm, called the Score-Based scheduler, is presented and shown to overcome these drawbacks.