2: Not problems yet, though it took a very long time for it to load my DLC the first time.
3: Err... Sucks to be them?
Song Total: 1,132 (Last updated: The Day The Music Died)
2 - It did freeze once on me, after hours of play. In the rock den. But otherwise has been completely stable.
3 - Well, I have no idea, not being in EU or AUS,
As to the conclusion statement, the songs in the game don't really fit into any especial genre pack. While they're more mainstream than some things in other packs, they cover a fair gamut of genres (plus, in the North American market, all those brit alternative bands in the game are oddly out of place in the game as far as mainstream goes).
dlcquickplay.com/songs/xachary_cross (Direly needs updating)
IMO, LEGO game = epic win. (Even LEGO: Indiana Jones, which should have been held off until it included all four movies.)
DLC Wish List: