I have been fortunate enough to meet several of these chefs and have a great passion for traveling and food, so I feel very lucky to have eaten at many of there restaurants all over the world.
Gordon Ramsay, IMHO is the best TV chef that there is, I have been to several of his restaurants and the food has always been very good, I have met him twice and he is actually a nice person and really seems to care about the product that he puts out.
Wolfgang Puck is another great chef, I had lunch at his restaurant here in Detroit today, the lobster club sandwich is one of the greatest sandwich I have ever had, also his restaurant CUT both in Vegas and LA are among my top favorite restaurants ever, I have met Wolfgang several times at CUT and at some special dinners that he has done at his restaurants in Detroit, and he i genuinely one of the nicest people I have ever met.
Bourdain's restaurants are not that great and he is not the greatest chef in the world, and to be fair he has not actually cooked in a kitchen in many years, but I had the pleasure of meeting him at an event and he is wonderful to talk to and seems to have the same passion for great food and travel that I do.
Andrew Zimmern was at a Stone Crab festival that I attended in Florida along with several other chefs, none actually famous other than him, however each chef made some food for the party, while Andrew is a very nice person his food was nothing special, although I have great respect for him since he is willing to try anything, as I usually am with some exceptions.
Morimoto is a very talented Chef and his restaurant in New York is very good, I do feel that Nobu where he started is a better restaurant and I find that Nobu is one of the best chefs in the world and a pioneer in fusion.
Sorry that I may have rambled, but in the end I think that my top 3 would be:
1. Gordon Ramsay
2. Wolfgang Puck
3. Nobu Matsuhisa