engine for 20 Seafari

[gaulois]

Hi Capts,
I have gotten feedback from other posts, but Ill throw the question out again.
20ft Seafari. When I re-power I have decided to go in the 130-140 range. Ive heard everything about the etecs, and I doubt that I want to spend a fortune. Many have suggested the Suzuki 140s as a great engine. Are the 2 stroke zukes reliable? 4 strokes seem to dominate in reliability and effeciency. Several have suggested the V4 Yamahas. Again- 4stroke/2stroke. Reliability is my big concern along with fuel efficiency. A few Seafari owners even have 115s.
Any input would be greatly appreciated. Probably want to keep the weight under 450.