Presenter wise there is very few I like these days, limited to Peter Sherlock, Paul Becque, Charlotte Mounter and Cindy Humphrey.
Assistant wise Lisa Legs (Celisse) is the best assistant by a country mile on these channels and no-one comes close to her. I also like Lucia Coward while Rebecca Tan seems like a good addition.
I'll add that I saw Lucinda Grossmith for the first time last week in ages, so presuming that she is still around, I'll add her to the list of people who I like from these channels. Additionally, I had forgot about Jules Sowa, although I think it has more to do with the fact that I quite fancy her.