Best motor option?

If you are looking for long life, long term reliability and good resale value then a diesel inboard is the way to go. I own a 30 ft boat with twin mins 4BTA-250 diesel engines, my average fuel burn for the season is less then 7gph. I can cruise at 24 kts. Diesels are simpler to maintain and are much more reliable. Almost any yard can get you going and you don't need all the plug in diagnostic tools that the new outboards need. The inboards transmission is much stronger then an outboards. Yes outboards are faster, but to many negatives for me.