It's a matter of personal choice.
For me, as a reader, I was used to the 'said <character>' form and it took a while to become comfortable with the '<character said>' form**. Now I don't care.
As for characterising something as a legacy usage, I think this is best applied to something like 'said he' rather than 'said <character>', given that plenty of modern writers use the latter.
** - In my mind, and this was a long time ago, when I hadn't rally read a lot, I kind of assumed that the former was more used by English writers and the latter by North American writers. More likely, it was simply an artefact created by the smallish sample of books I'd read by then.