I have no experience with those motors, either. Here in Georgiaís freshwater lakes, itís a mishmash of old and new outboards. Some marinas still sell 50:1 premix, direct from the pump!
When I visit family on the Gulf coast of FL, itís 75% Yamahas. Up north in the St. Lawrence seaway, Honda seems most popular among outboards.
Mercury/Mercruiser does a nice job of marketing based on new features that the rest of the industry doesnít have. However (at least in the inboard/stern drive world) they donít have the greatest reputation for testing these new innovations before they get to the first batch of ďend usersĒ...
'16 Mini Cooper S, 20k
'10 F150 4.6 3v, 107k
'13 Kawasaki STX-15f, 150 hr
'96 Sport Nautique 351 GT-40, 740 hr