[Sensori]

Problem with SCs I've always seen is that they can be killed by magic, no matter how high their MR is. If you go against a Mind Hunt spammer, you need to keep astral mages around - and even that's not a sure fire way for your SC to survive, unless you keep a really high quality mage with your SC, or multiple lower ones... Which kind of turns the SC into less cost effective than it would've been. Even if your SC dies in as many as a dozen Mind Hunt casts... Remember that that's just 24 Astral gems versus your probably used tons of gems of various types.

And that's just Mind Hunt. What about an Earth Attack, Manifestation, Vengeance or somesuch spammer? No way to stop those, and in the case of Vengeance (as Micah reported, Vengeances getting through 22 MR or so) spam, if they keep getting through, you just keep getting more and more kills... And while your great SC will probably get really high in kills and rise up in HoF, he'll also die sooner or later if the Vengeance spam is determined enough! Hit turn 75 and you're screwed.

And hell, I guess that even spamming Seeking Arrow would be effective if you can throw, say, 5 of them at a single SC.

But about the deal in question, I guess I'd go for multiple units with not too expensive items. Sure, I'd want to make sure my investment doesn't die in the first fight, but also I would want to make sure my said investment won't cost too much if (when) I lose it. I really like Wraith Lords because of that, since they're immortal (whee, no losing them!) and relatively tough out of the box.

As you might guess from what I've already said, I don't like putting all my eggs in the one basket called Super Combatants. ;p