I have no experience with those motors, either. Here in Georgia’s freshwater lakes, it’s 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, it’s 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 doesn’t have. However (at least in the inboard/stern drive world) they don’t have the greatest reputation for testing these new innovations before they get to the first batch of “end users”...