As I have an EB account figured I'd do this and see if them can step to *A as well.
Maintaining BA silver and Flying Blue plat is working well for me and those are the Alliances I'll stick with, although I may have more Nordics based travel upcoming.
The one thing I find having as many status as possible if there always seems to be status matching kicking around to OW and others, so with status overlapping in end dates, if for some reason i can't naturally make BA silver etc i can.match back....or get my BA silver uplifted via a match from A*.
Its like status chess, lol