Speaking on BBC Radio Ulster, the broadcaster admitted that she was "surprised" by the move.
"Personally I am quite shocked but if they're going for that younger audience - you know, going to school and that - maybe Chris is an obvious choice," she said.
Hunniford added that she would have "reservations", explaining: "That's only a personal opinion. He's a good broadcaster, but I personally don't think he's of the same calibre as Terry.
"Maybe that's just with my own age group. I still have [Evans] in a more childish category. I don't think he has the same depth, if you understand what I mean.
"He doesn't make me laugh as much as Terry. The morning is a very unusual period for me. I don't want to go zap, zap, zap, zap. I prefer the more gentle humour of Terry."
Evans recently confessed that he will not be able to fill Wogan's shoes when he takes over the show next year.