Cain is a 7/10.
He may be a 9/10 by election day. Or he may be a 5/10. Mccain certainly slid from a 7/10 to a 5/10 by eleciton day with his implosion, etc.
But right now, the best of the field seem to be 6/10... mitt has romneycare, tpaw is lame, palin is a dummy, newt is a grifter who pissed off the base...
maybe huntsman is golden, but he's unknown, so he's 8/10 at best.