In our meta, KHDs and HD+s are the most common sights; former for missions and cheap hacker presence, frying enemy hackers(most of the time, AHDs) being just a bonus. HD+s are mainly picked due to their Cybermask, or White Noise to chop up Tohaa Sniper triad. AHD/HDs are secondly common, since our local gaming club uses deployable repeater fairly often; it leads to cheap repeater linked KHD attack, blowing expensive AHDs in couple orders. Still AHDs are useful in hunting parties, making them hard-to-exclude but somewhat luring more KHDs on the field. HDs are used for somewhat two reasons; Fairydust or Assisted Fire. Otherwise many players in here pick KHD to field remotes, so well HD's a bit supportive guy now I suppose. DHD/WHD gets a physical shot in their face, so I didn't count them. Shot couple of them with my Hsien. None of them lived :P
Here's the previous discussion, I think it's still relevent. http://infinitytheforums.com/forum/topic/49332-do-you-think-hacking-is-still-enjoyable/
Although I've noticed that Ectros are also unusually popular amongst our Tohaa players, and AHDs are great against them. But yes I think we see a decent amount of Hacking. Notably the REM buffs, which I take almost all the time with Nomads and StarCo.
I always face KHD if only my enemy can field them (so everyone but MO and Ariadna). I always field HD on Fusiliers as it's the cheapest way to get access to few cheap order generators to fuel everything else (sad reality for MO). Depending on how much I want to suffer I might deploy Fersen. In NCA I always have Fusilier HD for this sweet MM2 on Bulleteers or similar. With AVA3 Fugazis, Bulleter/Pathfinder/Peacemaker it can make some nice "opportunity" roadblock/problem for not-stealth HI trying to approach my DZ. Some additional utility for/against AD jumpers or guided attacks is also nice. Hexa KHD is also quite often "opportunity" investment to clear effectively enemy hacking if I can get upper hand. It's also good TO secondary scoring specialist.
I'd say we have occasional Ectros, Barnsley doesn't tend to use them (anymore), Young Wolf tends to use Neema, I've only played Fire@will's artichokes the once and can't remember a pattern and I haven't played Alex's as yet. Think I've managed to use an AHD to get a HI to shed it's symbiote once, with CA at any rate these days I'd try to knock out Triads with Exile instead. I also find tohaa are pretty resistant to hacking anyway (besides the obvious reasons) due to the deterant of having about a million expendable H:flamer to counter attack with after the fact.