Primož RogliÄ is the archetypical rider for these races. He's won all of the ones that matter in professional cycling. Tirreno-Adriatico through to Critérium du Dauphiné, only the Tour de Suisse eludes him, and that's because he's never ridden it.
The Volta a Catalunya is challenging to predict due to varied goals among riders; GC contenders, sprinters, and classic specialists all seek different outcomes.