Kannagi
Spice & Wolf
Minami-ke (2nd anime)
Macross Frontier
Code Geass
True Tears

in random order.
but Macross Frontier and Code Geass are in the lower half, even though I like Mecha series. (ok, the order I've listed them is pretty much how I would rank them IF I had to )

Tower of Druaga is not good enough to mention here in my opinion.. it was decent

I don't know why we shouldn't mention ongoing animes though, since they also count as animes released in 2008