Dirty Harry Potter and Icepick wrote:the factions in SupCom are very alike, which was a let-down for me
I like that part. You really know each other's sides, which makes for equal battles. Some faction specialties are much too large in CnC (don't ask me for examples please, I just know there was something nagging me).
And the Tech4 units are the extremes of different. It will take ages to build them, but once you have one, you're the man! And taking down such a unit really gives me an adrenaline rush! (I'm talking about the Aeon UFO and the Cybran Spiderbot. I forgot the UEF special unit, sorry.)
Dirty Harry Potter and Icepick wrote:lack of micromanagement
This is the large difference in RTS style of the two games. In CnC, you can win a battle with a single unit. In SC, it is all about large scale (quoth the box "battles on galactic scale"). It's just what you prefer. And if you are a champ at µmanagement, I can see why you don't like SC.