"They have great attacking options. We experienced that at their place a couple of months ago," Hughton told reporters. "Victor Moses is starting to show his real quality now. Fernando Torres is hitting very good form.
"The fact they kept a clean sheet against Aston Villa as well shows the quality and depth they have throughout the squad.
"David Luiz playing in midfield is a role everybody felt was a role he could do and he showed some real quality.
"They are fairly formidable. They are placed very well in the league with a game in hand. They are still in the Capital One Cup with a great chance to progress (to the final).
"At the moment, Chelsea are on a high and he [Benitez] will be judged on that. He will perhaps look at the two teams above them at the moment and think 'will they go through the season without dropping points?'