Even though imrovements have been made recently to the measurement/Inspect tool, there is at least one more I can think of that would be great.
In Soldworks, any time I select an edge or face, a basic measurement is displayed without any need to activate a separate tool. If two edges or faces are selected, the normal distance is displayed. This is extremely useful when I need to double check a measurement that I need to take into consideration when creating a new feature. This is especially important when in sketch mode. Not having to exit one tool and activate another saves a significant amount of time.