Medieval II Total War, hands in the air waving (I wonder why some people signify their interest by holding their hands down, waving them seems more enthusiastic). I also adore the Homeworld series, and I'm patiently waiting for the sequel (if there is a god, or any goodly thing in the galaxy, there will be one).
Honourable mention to Company of Heroes, Total Annihilation and Supreme Commander, and others which I've forgotten.
Edit:
Tattaglia said:
Holy shit, people. The Total War series is NOT a RTS. The turn-based campaign is where the real strategy lies.
Sorry if you weren't being serious, but what about the real time parts of Total War? I most certainly employed strategy playing battles. TW is partly RTS and partly TBS as you are well aware. I didn't need a much more intricate strategy (even on very hard) in the campaign map then during the battles (also very hard).