We're presumably about halfway through 5th ed at this point, and as the newer books released after ours have been released, there's been a distinctive meta-shift for the Eldar army in general. Power has consolidated in fewer and fewer of the archetypal list builds, and it seems the dominate themes now are:
-Mechanized infantry focusing on guardians in serpents or avengers in falcons with a beatstick melee unit or two
-Wraithguard and fortune spam, backed up by monstrous creatures and a melee unit or two
-Seer councils backed up by fast-moving objective grabbers
What I'm curious about is this:
-To what extent do your own findings line up with what I have here, and is your own local meta any different?
-What sort of changes has your army list undergone from the start of 5th ed to the current state of affairs, post Space-Wolves?
-Have you had the opportunity to experiment with units or lists outside of the archetypes above, and to what degree of success?
Alright, now that I've had some time to think about the question you've posed, here's my response:
My local meta doesn't seem to have changed much since I played in a tournament at the LGC 13 months ago. Its still dominated by Space Marines, with a few Chaos, Orks and Eldar mixed in, as well as the occasional Imperial Guard or Tau. At the tournament I played in a few weeks ago, I even saw a Dark Eldar (Wych Cult) army. Of the two OTHER Eldar players I know of, one fields a mechanized Ulthwe list (Seer Council), the other a MOSTLY mechanized list, but with a few dismounted elements mixed in. As for myself, I didn't get the opportunity to play my Eldar in either tournament, so I cannot apply my own lists to the equation that describes my local Meta.
As for the evolution of my list(s) over the course of 5th Edition, oddly enough, my "tournament list" has come full circle. It began as a hybrid list, evolved into a full mech list, and then continued to evolve into another hybrid list, but with a different composition. I have had to modify the exact composition of the units I use, but not the overall type of list I field.
Thirdly, I have experimented extensively with a variety of lists, several of which do not fit into the archtypes that you described above. However, most of my experimental lists were tested against the same opponent, rather than a large field of opponents, so the results are inconclusive. I know that most of my lists can beat MEQ lists, and I'm confident that my list building abilities combined with my skill level as a player mean I can compete against most other armies, at least at the local level. I'm not afraid of any list I face; for an opponent to beat me, he must either roll better than I do (which I cannot control), or else he must out-play me.
Not sure if that's exactly what you were looking for, but that's at least an initial response.
C.S.