I had the same consideration a month ago. After having 3 diesels I thought I'd like to try gas because of the option cost, fuel difference, and routine maintenance cost. After much research and only towing a Crusader 290rlt loaded, I stayed with the diesel. Towing is 11+ with diesel and gas would have been 6-. Towing capacity rating was barely enough with gas while diesel gave me over 4000 lb. cushion. I dropped from a Ram 3500 dually to Ford F250. Just more convent without dials.
Days camped 2012 - 73; 2013 - 58; 2014 - 41
Days camped 2015 - 17
Bill and Pamela Hancy
TV: 2015 Ford F-250
RV: 2013 Crusader 290RLT