ohh, i love my RTS games.
Homeworld 2 was a good game, though i prefered Homeworld for the story line more.
Freespace as a fab game in its day, disapponited with Freespace 2 .. just did not get me
The entire Total war series is great, rome and Medival 2 was the best.
Dungion keeper was amusing.
Enjoyed COH and DOW series, though i was dissapointed with Soulstorm.. it kinda got tired by that point.
The original X-com was good :D, still play that today plus the new versions
But what i see here is noboody has mention the X series X2, X3, X3 terran conflict... these games are bloody Brilliant :D.. not more you could wish for out of an RTS.. great for empire building and getting in the firefights