Been watching a lot recently over the Xmas hols...
Paranoia Agent - eps 1-12
I tend not to use the term 'masterpiece' often - but this certainly feels like one. I'm not the biggest fan of Satoshi Kon's art style, but when it comes to execution and technique, he's peerless. This obviously riffs off similar themes to his other work, but the way it tugs and pulls at the darker recesses of the human condition really gets under your skin.
Gundam Wing - volume 7-10
When I first started watching Gundam Wing a while back I wasn't that keen on it compared to SEED - it felt so bogged down in the politics I struggled to get my head around it. But by this point in the series though, you start to get a handle on what it's trying to do, and at its best, it's frankly masterful in scope. The way its young protagonists are pushed to the absolute limit in terms of holding true to their ideals is shocking - there's this knife edge tension that runs through the final few episodes that all comes back to the concept of just what it means to be a human being.
Gundam Seed Destiny - volume 7
The famous Stella death sequence episodes. Again, I haven't always been the biggest fan of what Destiny tried to do after SEED, but the sheer anguish and raw emotion on the faces of the characters in this run of episodes is terrifying in its brutality. Again, this is Gundam at its best - when it shows the frailty of humans and the horror of war.
Broken Blade - eps 1-3
Went into this blind, but really enjoyed it - it plays off the same 'ancient technology' stuff Escaflowne did so well - and it really benefits from the extra animation quality being an OVA series clearly brings to it. The action sequences are terrific, helped along by one of the best scores I've heard on an anime show in a long time. That said, the fan-service sequence between two of the female characters in the third episode is almost laughable in how shoe-horned in it is.