I tend to operate on the basis that if everything else is equal, lighter is better, but having had some weight weenie times, and broken parts to show for it, weight is no longer a primary selection factor for me.
i now tend to go for the lightest parts that are reasonably priced and up to the task. a lot of the time i don’t even look at the weights except on “big” stuff like frames, forks, wheels etc.
Strong. Light. Cheap. Choose two – as valid today as it’s ever been