Liverpool aren't the best team in Europe right now, and certainly weren't when they won the competition in '05, but who said competitions had to be won by the best team? The fact is that Benitez knows how to play in the Champions League, and his team, while unable to match the front-runners in the Premiership this season, can raise their game in Europe and beat the very best that the continent has to offer. They showed it against Barcelona and Chelsea, as well as against United in the game at Anfield, and all of those sides were fielding strong teams when they did it.
Sure, they've not had as hectic a schedule as some of their rivals, but to suggest that's the reason for their success just isn't fair. Otherwise, you might as well argue that you only pipped Chelsea to the title because you were knocked out of the Carling Cup in the fourth round, giving you the advantage of a less congested fixture list.