Dixon waspoached by Simon Cowell in the New Year to appear as a judge on Britain's Got Talent and has since been replaced on the BBC show by ballet icon Darcey Bussell.
When asked by DS if he misses Dixon, Horwood replied: "Not really, no.
"I loved working with her for three years, but I think she's far more suited for Britain's Got Talent.
"She was qualified to be on our panel, she won the show and great respect and all of that. But Darcey has spent her life in dance, solely, and that adds an enormous amount of weight behind the comments that she makes."
Commenting on Bussell's performances so far, Horwood admitted that the ballet star had suffered some "ropey moments" early on, but claimed that she has now found her own unique style of judging.
"She had a couple of ropey moments in the first show, but that's to be expected - you're going live to 12 million viewers and everyone has an opinion on who should be judging, what they look like and all of that," said Horwood.
"You're very guarded the first time that you do it, but she's found her own style and I love it. She's Darcey 'Tip' Bussell, everything is followed with a quick tip. I think she'll be with us for many years to come.
"She's a class act. She's very, very classy. She knows what it's like to go out in front of 2,000 people a night and deliver. She's brought an enormous amount of weight to the panel this year."
Strictly continues this weekend at 6.30pm on BBC One.