These days, I put Honda and Yamaha about even for build quality. Honda is also known for innovation (oval pistons, the
CB750, first sportbike ABS...) and overall refinement. Yamaha was always really good at carbeuration, and I believe I've read their fuel injection is also very good. Kawasaki; you nailed it - engine, and also exhaust note. Sometimes a bit heavy, but the Kawi cruisers are ...