Top 5 RTS
#1, Dawn of War 1, expansions nix Soulstorm (some of my best memories in highschool centre around this game)
#2, Dawn of War 1, Firestorm mod (a mechanically different enough game to warrant a second spot :D very solid, very fun)
#3, Red Alert 1 (my childhood in a game)
#4, Homeworld 2 (the only 3D space RTS game I've played. Never did campaign, never needed to for the fun)
#5, .... hrm, Starcraft 1 or Warcraft 2
Wrong Genre Contenders
Grand Strategy; Crusader Kings 2 (It's not eugenics, it's just very strategic breeding and political marriages)
Tactical Strategy; Rome: Total War 1 (So many good times, so many conquered worlds that fell apart. Great)
God Game; Black & White 1 (Still the most amazing omg, even if I glitched it horribly that one time)
Turn Based Strategy; Civilization 5 (I don't care that other people like other ones more, I've put way too many fucking hours in this :D)
City Building; Tropico 4 (ALL GLORY TO EL PRESIDENTE)