I would say Honda as well. My elderly neighbor has an old Honda string trimmer from 1995 that had been sitting in her garage for over 10 years. When I went to start it up, it still somewhat ran. Replaced the carburetor, and now it works like the day it did from day 1.
Our Toro walk-behind lawn mower has a Tecumseh engine in it. Never gave us any problems despite that its oil had never been changed in its 15 years until a few months ago.