Davina, who fronted Big Brother during its run on Channel 4, admitted she is a huge fan of the ITV2 reality series.
"Love Island is what Big Brother used to be," Davina declared. "It’s got such an amazing buzz about it. I love it.”
“I watch it with my 15-year-old, but I wouldn’t let my 10-year-old watch it, put it that way,” she added.
Speaking to the Daily Mirror newspaper, Davina predicted the show could move to ITV in 2018.
"They are going to go on to ITV next year for sure. They would be lunatics if they didn’t," she suggested.
Big Brother and Love Island have seen quite the change in fortunes in recent years.
Love Island originally aired back in 2005 as a celebrity series but was a big flop against the then super popular Big Brother, then hosted by Davina.
But the revived version of Love Island on ITV2 has been winning those viewers back with its new format.
In recent weeks Love Island has had over 2 million viewers while Big Brother has been failing to get more than a million for the past three weeks on Channel 5.
On Friday, Love Island had 1.9 million viewers to Big Brother's 800,000.
Love Island host Caroline Flack said recently she didn't like seeing the shows pitted against each other.
"We make two really fun shows that shouldn’t be put against each other," Caroline said. “I don’t think anything about Love Island makes it better TV than Big Brother.
"I think they’re both equally as good as each other.”