I admit, I've never actually played Starcraft. By the time I was even aware of it, it was way too old for me to get into (I only hit up the decade old games when they are RPGs). It may be wonderful, but everything I've read about it sounds like a very typical RTS. I know some will claim that it INVENTED those cliches, but still by today's standards...it looks like Warcraft in space. I've also never played a Blizzard game I thought was great (Diablo was probably their best game that I've played and even that was "meh" when it comes down to it), so I'm assuming that Starcraft, while perhaps better than the rest, is still leaning more towards mediocre than great.
But I could be wrong. I doubt it though.