The EastEnders actress has odds of 1/2 from 4/6 with Ladbrokes, way ahead of nearest rival Aled Jones on 2/1.
"Jill is miles ahead of the others, it is turning into a one horse race," spokesman Warren Lush told Digital Spy. "Aled Jones looks likely to run her closest. He may not be amongst the best dancers but his popularity will get him a long way."
Winning Odds in full
1/2 from 4/6: Jill Halfpenny
2/1 from 3/1: Aled Jones
6/1: Denise Lewis
14/1: Roger Black
14/1: Sarah Manners
20/1: Julian Clary
