As virtual football rivalries go, PES and FIFA might have the limelight but one of the more enduring ones is in the slightly more staid world of football management. In one corner there's Championship Manager, bearing the most iconic name in the genre but still weathering the storm of the split between Eidos and the series' original creators Sports Interactive. In the other corner there's Football Manager, what Sports Interactive did next and what's widely acknowledged as the best in class since the studio partnered with SEGA in 2004.