J K, David Attenborough, Bill Oddie, Chris Packham et al. Every one of them is a rare asset to the natural world.
Some people like one and not the others, who cares! Between them, each in their own individual way, they are enriching peoples knowledge of the natural world and that can only be a good thing.
My personal opinion is that David Attenborough is absolutely peerless, Chris P may well be his natural succesor. Bill Oddie grates on me occasionally, and Johnny K is as mad as a box of frogs! That said, I love to watch them all