On the other hand, 2005 was tainted by the Pan-Green's subsequent unpopularity due to the "assassination attempt" incident, so neither really represents the political situation well. (Though the Pan-Greens will definitely struggle to regain their footing for a few years.)
True, the Pan Greens have been very unpopular since the shooting incident, but that was only a small reason for their unpopularity (the president has something like 15-20% approval rating now). There was all something about insider trading in Chen's family, overpaid servants, corruption here, corruption there, and perhaps the general collapse of the Taiwan Independence movement. On top of this, the KMT has had a charismatic fresh face for the last year, and Beijing has been eager to invite pan Blue leaders to visit. Thus, the current malaise for the pan-Greens.