I love both steampunk and dieselpunk from what's described there, I never heard of dieselpunk before this thread but I love all things Fallout, the first and second and third point and click adventures on the PC are superior to any of the other console games if you ask me though but the wider world building and themes are likely the same in anycase, I love steampunk in every respect I've heard of it articulated, right back to HG Wells, but in contrast to both of these I absolutely detest cyberpunk, I loathe it and dont like any of the stories associated with it really, I dont like the idea of transhumanism or the singularity at all.
I'd contrast the positive pictures of the same in Johnny Numonic and Chappie with the latest Terminator movie, to a lesser extent but making the same point in a round about way any of the Robocop movies also (the fact that Murphy does not see his cyborg existence as something entirely positive is underlined in all the original movies, the fact that its his doomed, almost obsessive attachment to the life he lost, including the love of his former wife, which permits him to survive and endure at all is done well and not ruminations about his being only a head, lungs and heart and wanting to live besides or feeling like homo superior or a new post human species).
There's something detestable about the cyborg idea, I think, given that I grew up with Dr Who and had the soulless Cybermen, Robomen and Daleks as reference points could be something to do with it, although humanoids like the one in the Superman movie with the sentient evil supercomputer in it, the cover art from Iron Maiden record sleeves and even Disney's The Satellite Kid conspired to create a fear and bias of humanoid, machine men devoid of will, conscience and possibly even consciousness.