If you really want to get people trash-talking around Annapolis streets, just ask them where you can get the best cream of crab soup. That question alone is enough to silence a room, sending people to grab their pitchforks, draw their lines of loyalty and prepare for battle. But somewhere in the kitchen of Ports of Call restaurant at the Doubletree by Hilton Annapolis, executive chef Charles McKnew is too busy to engage; he’s methodically stirring his vat of multi-award winning cream of crab soup that he has been serving up to his fan base for decades.