Among the potential names on the list, I think that only "jargon" has a generally negative connotation, although "wawa" might sound overly simplistic. Just "Chinook" is confusing as it is the name of a traditional language or family on and around the Columbia River valley. "Chinook pidgin" would be potentially even more negative than "jargon" as the best-known connotation of "pidgin" is Papua New Guinea, whose inhabitants do not have the best reputation in the general population (as opposed to, possibly, among linguists and anthropologists).
Among the potential names on the list, I think that only "jargon" has a generally negative connotation, although "wawa" might sound overly simplistic. Just "Chinook" is confusing as it is the name of a traditional language or family on and around the Columbia River valley. "Chinook pidgin" would be potentially even more negative than "jargon" as the best-known connotation of "pidgin" is Papua New Guinea, whose inhabitants do not have the best reputation in the general population (as opposed to, possibly, among linguists and anthropologists).