Supreme Commander is the spiritual successor to Total Annihilation. It is made by Chris Taylor and is very similar in style. If you don't like that you probably wouldn't really like a sequel to Total Annihilation.
I've already said the problems with SC. It was a very bland and plain successor. They recognized this and tried to bring it up to the level of TA with SC:FA but it is not as good as Total Mayhem or TA:Escalation. Try them out and you will see the difference.
Forged Alliance Forever is about as close to the TA experience as you will get - coming from another hardcore TA fan.
It's of course not quite the same, but the community work on SC:FA has really made the game quite polished.
I too am still waiting on another modern TA-like flow economy game, but supreme commander is still by far the closest and best there is. In some ways it's better.
Remember Supcom 2 is in no way affiliated with the TA franchise like supcom 1 (and expac) was. It's an entirely different (and bad) game imo.
