fearofpavement
Trying them all
Making a blanket statement that Stihls are harder to work on than Husqvarna saws is pretty pointless. The ease of repair varies from model to model even within brands. I've worked on a lot of different brands of saws and never had the feeling that the degree of difficulty was brand specific. What you're familiar with and have experience with is what becomes easy, while unfamiliar models may be perceived as being more difficult.