Biscuits and pocket-screws have worked great for me, for just the
reasons you suggest. As others suggest, neither, nor both, are a
panacea. Especially if you want really precise locating, it takes care
and attention.

Location and number of screws is also important, depending on the
materials being joined, to get a tight joint. At least, unlike the
famous "brads while the glue dries", the screws can be removed, and
reused.

Inherently, pocket screws are quite proper. :') IMHO.

John