Hmmm...Half the voters could be undecided. Wow! Germans voters are even more volatile than those in the US, or maybe interest in the election is currently low. Considering the economic crisis, interest should be high.
Thatīs probably because many people see both major parties as equally incompetent. So, they have to decide... a) if they go to the polls at all and b) if they do so, for which lesser evil they are going to vote.
Which one of the polls on the list would be considered the German version of Gallup, or the most trustworthy polling firm?
Do not trust, under any circumstances, the polls from Allensbach. Fortunately, they didnīt do any in NRW recently... maybe they just noticed how screwed their methods are.
I think the rest of the bunch is more or less trustworthy... as far as you can trust a polling firm. The one which predicted the outcome of the 2002 Bundestag elections most accurately was Forsa, but maybe this was just good luck. Perhaps Lewis knows more abut this topic.