Get what is serviced by a good dealer in your area.
They are all great when they work, and all suck when they don't. With that said, I switched to Hondas 15 years ago(4 stroke) They are the lightest 4 strokes out there, lighter then the Etecs, they don't break, they have all the power you need, and I can buy a new one with the gas I save. Suzuki comes in second place, very good engines. If you need to save money, check out Tohatsu, I used them for many years as I had a great dealer/mechanic, they were tough engines, a little crude but they didn't stop.I have worked commercially in marine waters since 1969, I've had them all, so have my buddies and other Bayman, our motors have to keep working, period. We DON'T see Etecs anywhere "here", a few mercs and yamahas round it out. The only reason you see mercs on the various police/agencies boats is they get them below wholesale, it's a merchandising thing, and the maintenance is high.
Get what you want, but make sure you have the dealer thing covered.