I completely agree lol, something was wrong with him. But then again liu bei didn't come from great stock himself, he's always portrayed in the games as weak and not very bright. The greatest family during this time period would easily be the sun family, they had plenty of capable leaders and were all very well versed in military affairs. Their main problems were their geographic location in the south east, they were sailors and the best at naval battles but were terrible at land battles in the north and never made much less way into the west where liu bei was since the territory was mountainous.