LP vs CD of Sky Blue Sky (2007) depends entirely on your set-up. Both are great, with LP sounding more expansive & richer & bit less aggressive on my system.
The big score LP of '08 is probably the $100 Dylan Tell Tale Signs box, though I have so far only heard the excellent sounding 2-CD set.
Ditto above praise for Ray Davies Workingman's Cafe. Other fine '08 releases include John Hiatt Same Old Man, Lou Reed Berlin Live at St. Ann's Warehouse, Steven Malkmus Real Emotional Trash, Shearwater Rook, Mercury Rev Snowflake Midnight, Calexico Carried to Dust.