Only watched a couple of shows, and not looked at the markets recently, but I'd make Adele Silva the fav for this and would expect her to win. Fanbase will already be there(ok she's not a particularly likeable character on Emmerdale but she is atleast well know, and from what I've seen she's chucking herself right in at the deep end and looks prepared to put in the work.
The contrast between her getting her hands dirty in the kitchen and her spoilt character on Emmerdale works well too - expect too see a wee 'journey' from her which is always important.
And as it gets more stressful, guaranteed to turn on the waterworks...sorted

Very much in the Jennifer Ellison mode(just not as hot.)
Let's have a look at the odds...mmm 5.0 ish on
Betfair...good enough.