My Capcom Breakshot's adjustable-power flippers were tight and snappy but the settings were not something to be vicariously toyed with or you could easily start breaking things. Very solidly built.
For EMs Gottlieb wins for me, unless you're more into really fast playfields and DC power and then Williams was the master at that. Bally multiplayer cabinets also felt like they were built like a tank like Gottliebs.