Jason Gardiner says Beth Tweddle lacks the personality of a winner.
The 'Dancing On Ice' judge has slammed the 27-year-old gymnast, claiming it would be "underwhelming" if she won the TV figure skating competition despite praising her talents.
He said: "I don't think Beth has got enough personality. This is something I have been saying a lot.
"It would be underwhelming if she won, there isn't much excitement to Beth."
Jason, 41, told The Sun newspaper she is missing something to make her the "complete package", although he praised her as one of the "most brilliant" female competitors to perform on the celebrity skating show.
He added: "She's one of the most brilliant celebrity skaters we have ever had because of what she can technically do.
"Her skating is so clean. Her ability with her body is remarkable. But what she struggles with is the complete package."
The choreographer also blasted fellow judge Karen Barber and insisted they would never socialise outside of their work commitments.
He revealed: "Would we chat outside work? Oh good God no, no. I just wouldn't waste my breath.
"A lot of people have been taking about these looks Karen has been giving me. I repulse her and that is OK.
"I won't talk to her at the wrap party, God no, I probably won't even go. We are just work colleagues who don't particularly get on."