I think you need to consider what your cooling before jumping into big case territory. The options get shrunken down while possibly making 0 effect to your end game goal. I have the v3000, I do like it but it has outdated features. If your looking into modding and making improvements the v3000 is a good platform. However, if all your cooling is 1 hdet setup and 1 gpu. Such a large case is simply overkill. As a real life example of mine. I have a rog pc-o11 and a v3000 in the same corner of my room. My rog case has a 9900k and a 2080ti in it. I can tell you it is very quiet under load and the temps are very much in line. We are talking mid 40s for gpu and I am using LL fans not exactly the best fans in performance talk. Meanwhile my v3000 has a x299 setup that has watercooled vrm, 2x 2080ti, and a 7960x on 2 480s. Obviously its a lot more heat and my temps are not as good as rog case. Just sitting there idle my water temp is 5-6c higher on the v3000. So if you want more options case wise then really evaluate what your trying to cool and you will have more options. As per the 3 cases you listed, the 1000d is a waste without dual system, the elite is nice but overpriced to an extent. Mind you btw I have like a 27c ambient lol.