I have no interest in either.
As a few people have been using the term and i like it i will use it here - FFG are cannibalizing their own customer base in attempts to get other game lines out there. There is no way their entire customer base will buy ALL star wars related products and so it dilutes the spending of any one potential customer as they split their money between game lines or focus on one.
I understand that FFG have the star wars license and only for a fixed amount of time so are wanting to rush out as many games as possible as the hype around Ep7 builds, but seriously...
I hear you, but I don't think they are trying to cannibalize their customer base - I think they want multiple Star Wars product lines out in good time for the massive wave of new potential players EP 7's release will bring.
Now any new Star Wars fan who comes across FFG has a card game, an RPG, a boardgame with a bonus skirmish game included, and two miniature space combat games.
I think Armada is definitely targeted at the X-wing crowd, but the others I think are just trying to widen the appeal to as many Star Wars fans as possible.