Okay, as I posted recently in another thread, I'm looking at getting into WHF. Currently, my playstyle with 40K is rather melee-up-in-your-face, which from my readings, makes Dark Elves seem like they'd fit. The description on the Armies of WHF in this forum made them even more appealing. That in addition to the fact that the models look absolutely badass...
Dark Elves can certainly make a very mean melee army, though they have good ranged options. Lots of options for high-strength attacks, or lots of S3 attacks. All very reliable.
1. Now, I know that the Codex is only 3 years old, but it was still released in 7ED rather than 8ED. Not being familiar with 7ED rules (hell, being only partially familiar with 8th after sitting down and reading the entire rulebook yesterday haha), was the release of 8th debilitating for the DE codex or was it relatively unaffected?
It knocked Dark Elves down just a tiny bit, but they are still going very strong. Strong magic, reliable troops, etc. They're just fragile and expensive, but a good general can work around that.
2. What about you all that have experience playing with/against Dark Elves? Is it a fun army or will I be channelled into a certain build (I've already accepted that I have to get 2 War Hydras and a lot of Executioners).
It is a very fun, and very versatile army. There are only a couple truly bad choices though some are subpar. War Hydras are very good, Executioners are kinda bad, but can do a lot of damage in a horde.
3. In terms of modeling and conversion, are the WHF models for DEs easily modified? I had picked up a box of Chaos Warriors a few months back to convert to CSM, and wasn't really pleased with the pose-ability of the kits. Do the plastic DE kits suffer from this as well?
No, they're usually quite good about this. It's very fun to mix-and-match with the Dark Eldar models. =)