This research study evaluates two configurations of boost power factor converters (PFCs) operating in discontinuous conduction mode (DCM): parallel PFCs and semi-bridgeless PFCs. As power levels increase, the bridge rectifier in an AC-DC boost converter becomes the most thermally demanding component, necessitating a heatsink. Both configurations utilize an identical number of semiconductor and magnetic components. However, the semi-bridgeless configuration, through rearrangement of parallel PFC components, achieves a reduction of one diode drop in the bridge rectifier. A design example employing a PFC controller IC with an integrated Gallium Nitride switch is presented. The semi-bridgeless operation is demonstrated using two individual controllers, eliminating the need for a dedicated controller. The paper thoroughly discusses the challenges related to equal current sharing in both configurations, thermal considerations, and the respective efficiency advantages of each setup.