Right now I'm watching Sailor Moon Crystal. I've been watching less and less new anime recently, except for movies, but I've also been revisiting some older series, especially space opera. I'd love to sit down and really go through Galaxy Express 999 or Space Pirate Captain Harlock some time soon, or even The Irresponsible Captain Tylor or Martian Successor Nadesico again (provided I can adequately ignore the existence of the sequel movie).
I started watching
Galaxy Express 999 in the autumn of 2012, although I'm still stuck in season 1 due its sheer length. I find the artwork thoroughly amazing however.
Besides series mentioned already, for shorter series I'd recommend
Sora No Woto and
Girls und Panzer.