Forsyth argued that Simon Cowell's ITV1 talent show has a stale format and accused the singing competition of staged fights between the judges.
Speaking on Radio 4's Front Row, the TV presenter said: "Strictly has other things to offer, not just singer after singer after singer and judges making up rows between themselves... scripted, I think.
"Although ours is a reality show, we do have people getting up and doing something, we have got beautiful music going on, great singers, we have comedy from the judges, there is [also] comedy from me.
"I am just thrilled that our show is getting a bigger audience than ever this year. That is what I am thrilled about"
Strictly has beaten X Factor in the ratings twice this year with Halloween and Wembley Arena specials.
The switch in fortunes for the show's ratings is in sharp contrast to the 2009 series, which was won by Chris Hollins.
Speaking about the show's fall in viewers two years ago, Forsyth blamed an unnamed show boss for booking poor talent.
"We didn't have the right people on the show. It was a decision made by somebody - I won't mention any names - that we didn't have the people. This year we have people who are interesting," he said.
> Bruce Forsyth: 'X Factor judges too rehearsed'