Terry Nutkins! Sorry, mention of Chris Packham reminded me of him.
Is Simon that one always lurking on clifftops and in marshes whispering? I find him creepy! Can't stand Kate Humble and didn't really take to Saba, not sure why. Maybe because Dave is the best!
Chris Packham does seem genuinely interested, do also like Bill Oddie (Oddy?), as he has no concept he is on the television and therefore should think about what he says.
I am also still mourning Steve Irwin. I can see how he wouldn't be to everyone's taste and spending half an hour in his presence would probably require you to go and have a lie down in a darkened room, but his enthusiasm was infectious and he knew his stuff having grown up in a zoo.
I guess there are probably lots of people out there, but they just haven't had their 15 minutes of fame yet. What about Bob the big cat keeper at Longleat (bald one with the earring), he always comes across well on Animal Park. He even had Brian the side kick.