I have no FF status to leverage. Primary concerns are comfort and time. Due to price constraints (client budget), the max is US$ 900 for the one-way, so it will likely have to be in Economy, not even Premium Econ. If I could get UA MP credit, that would be a bonus, but is definitely secondary to the other criteria.

Given the good connections (1 connection with a layover of about 2 hrs) it seems that CX, HX, and PR are the best options. PR and CX seem to have the most leg room according to Google Flights, but I'm not sure about seat width and other issues. Suggestions?