Television is not the best medium for a cook, so the best TV chef will always be the best 'TV chef'.
Now that might seem clear, but Delia is not Nigella, and Nick is not Rick. So where do you want to go with this? Do you want instant sex, and dishes assembled from glam little Waitrose packages, or basic principles?
Or reality tv, and Heston, or the sweary guy?
Turn off the television, and read Elizabeth David, Jane Grigson, Alan Davidson, Tom Jaine, etc.
Rant not yet over...