Although i've been waving the Suzuki and e-tech flags, I'm also very fond of the two different lower hp Tohatsu's that I've bought. They are extremely popular in Asia, not because of the manufacturer, but because of reliability. My motors were both masterworks on the inside and totally serviceable under the shade of a tree.
Right on about the ease of the e-tech service and winterizing, lower parts count and all the rest. I also see that the e-tech can actually safely run out of the injector oil for several hours.
Regarding the Suzi twin 50's on Still Crazy, they are smooth and gas friendly and they do have that timing chain instead of the belts. That said, I'd been equally happy when I bought my boat used if it had come with hondas, mercs, e-techs, yamis etc. All good engines.
I love twins and they are heavier at the transom, so transom weight may help you sort out the big 5 motor manufacturers. I think CD's are better off with less weight than more because if you have guests, they are most likely in the cockpit along with coolers etc. etc.
My twin set up trims out nicely in any case because of the trim tilt and the hydraulic trim tabs.
Fun, fun. New motors are like buying you boat brand new.