It is worth mentioning that the games with a lot of votes (DCS, IL2, WT) have pretty populated subreddits and a generally younger crowd.
And a boat load more players. 99% of whom probably have never flown AH.
And some AH players voting that probably have never spent any meaningful amount of time exploring DCS.
So I don't think those results say anything about the stated topic. I think it is a straight popularity contest. A proxy for market share. It is simply telling you which games people are committed to.
I wouldn't be surprised if the proportions of market share and revenue map pretty cleanly with those result. It's not bad insight, just not what was asked.
Although it might not be too far off from accurate even relative to the intended question. But since most voting have not spent meaningful time in all those sims, it is untrustworthy evidence. For instance, I don't think WT would beat AH in flight and damage model if someone had played a lot of both. Maybe I'm wrong. What you got was a lot more people saying they like WT and not really commenting in AH because they've probably never heard of it.
I didn't vote because I had only really played enough of half of them to compare each to other. For those that I'd played enough to be willing to hazard an opinion, I'd rank them:
1. DCS
2. IL2
3. AH
4. WT
I've always thought AH was a compromise between IL2 and WT. DCS is kinda off in its own little genre.
[Edit]
Also I think that wasn't be best forum for the question you asked. They are heavily skewed to the MSFS crowd.
I would have suggested something more combat sim related like Hoggit.