QUOTE (suoq @ Jul 12 2011, 01:07 PM)

I've faced with 20, I've faced with 12. It doesn't really matter. The problem isn't necessarily the GM. The problem may be communication and sometimes player expectations.
Do you want to be Face from the old A-Team or Sophie from Leverage? If that's so, no dice pool is ever going to be enough, because they are faces by fiat, not by skill. Even their worst ideas work perfectly. (The con in the tent on the mountain in a recent episode of Leverage just stands out in this one.)
And there are times the GM should ignore your ability. As a face for example, the client's choice may well be to pay the team what he offered or to go elsewhere. No amount of negotiation will make him have more money in his pockets. Sometimes people really are out of resources. And you can't convince the security guard you're the janitor if they know the facility only uses drones for janitor services.
And sometimes the dice just hate you. Burning an edge up front, rolling 20D6, watching the 6's explode, and.... 2 hits. Yep, that was my shining moment this weekend.
I know there's times when GM fiat is called for, like if the mark isn't interested in what you're offering in more ways than one. However, when you and the opponent have a common subject to negotiate over, and you're at 12 dice as a face, and there's absolutely no way you can succeed because the NPC is absolutely perfect at everything and knows everything forever, it's not playing the game, it's waiting for the GM's ego to subside before you're allowed to be who you spent build points and karma to be. The difference here being, when the GM says the NPC is better than you, and you pull out 24 dice and say, "Really?" it forces the GM to heartily reconsider his notions. Or admit that he just put you up against the 47th Great Dragon or overly powerful free spirit so far in the game.
As a GM, I do make some powerful and dangerous (not usually both at the same time) NPCs in a game, but while some are specialists, none are perfect. I'm also absolutely certain not to fall in love with how perfect they are, or to worry if they get killed by the group. I faced such overpowered GMing as a player, and I never liked it, so I took that as the lesson to learn for when I GM. It's easy for a combat-specialist to kill a bunch of people, because there's plenty of pre-statted and well known cannon fodder for it, and the GM doesn't feel bad about having cannon fodder wasted in endless waves to make a player feel powerful. However, a GM who's too in love with his high-powered fixer or Mr. Johnson will balk at the idea that a player could even match him, after all the work such a person went through to build their empire or earn favors, or whatever. The cannon fodder isn't a symbol of the GM and don't gain his affection or protection; the big powerful NPC on the other hand...
It falls down to game design theory and literary tropes in the end. It's not always about winning, but if the face character can never be as awesome as those street sams, riggers, and adepts mowing down the competition, then why would anybody want to play it?