Rate Browser is very helpful in the Order View to check on the cheapest rate. However, it is missing from the Scan View, so you have to individually select each option and wait for it to load until you find the cheapest option. Having the Rate Browser available in the Scan View would save a TON of time.
Even better yet, the ability to create a rule based on a requested shipping method (i.e. standard) that auto-selects the cheapest rate, which can be changed if necessary.