@drano - your 6wd example - I wouldn't so much have a problem with you pushing for that. I would wonder what on earth is happening in the brains of the people you are convincing to go for that.
@drano/captain - I tend to agree with you both - and I also have a past experience to share. There was a game where I was pretty much told by two players in my sphere that neither would even consider working with me anymore (something about me stabbing too many times or whatever). There was a big power in the other sphere and I knew none of my sphere had any solo chance. My position was - work with me against the other and we canf ind a 3wd with the big power. They both rejected and so I was forced into a corner. I could either fight them as long as possible and hope to live long enough to be necessary in a stalemate, or, I could choose to help the large power on the other side try and solo. I set it up in a way that I would help him solo but his reward to me was to be my defeat before the end. Ultimately, I knew that there was a chance for me to be a part of a draw after the two neighbour powers so what they had caused. I played with this in mind.
So, I think that so long as you are alive in a game there is always a chance to be in a draw especially if one can use their diplomacy well. With that being said, I also think that being defeated has two distinct stories - a defeat in a game that ends in a solo is far and away a better result than a defeat in a game that ends in a draw.
And to touch back on the OP, being defeated in a game that ends in a "predetermined draw" is just awful, the worst feeling in diplomacy. I actually played a 36 SC victory condition on the classic map, and, there was a draw from three players that was agreed upon like 3 years into the game. Consequently, there are three players for whom I will likely never intend to play with again: http://vdiplomacy.net/board.php?
gameID=6713