That depends on your definition of "wargame." To me, a wargame is playing in wartimes or in armed conflict that amounts to the level of interstate war. Call of Duty is a wargame in that sense.
To add to that, I came to no longer use the word "Strategy game" as much as I used years back to describe "top-down view - giving orders game", I only use it for games that actually play out on the strategical level. Respectively I describe Co as operational level wargame etc., thats why I loved Matrix for actually acknowledging the different dimensions of warfighting and create subcategories for them in the search function.
I don't know for sure though how to describe games like Warcraft, or Command & Conquer. I started t call them "maneuvergames", or tactic-games (not the same as tactical-level wargames).
I don't think the list is "dumb", I think the question is conceptually flawed. To ask for the top 20 wargames is just very ambitious, and brings along questions of what "wargames" actually are.
On a sidenote: Do we have an off-topic, or "General Discussion" area on the forum, except for the unsorted postings on the top page of the CO2 subforum?
Regards,
A