Warmongers do not have good intentions.
Ignoring all other issues, if Candidate A believes in universal healthcare wheras Candidate B is a warmonger, based on that info alone I'd have to choose candidate A.
I don't like universal healthcare but it is not pure evil like sending Americans to invade and occupy an innocent country that poses no threat and cause the deaths of tens of thousands if not hundreds of thousands (or some even say 1,000,000+ in Iraq) of innocent people.
Not coincidentally neither Gravel, Nader nor Kucinich are warmongers. Maybe you don't like the phrase good intentions? While I disagree with them on universal healthcare I believe they support it because they think it would be good for Americans, wheras warmongers support invading Iraq/Iran for extremely evil reasons - there is a big difference between a liberal and someone who supports murdering innocent people for power/profit.