PandaMan, it seems like you're focussing too much on the potential ability of the other driver (who doesn't face a stop sign) to abuse his right of way by hitting your car with impunity rather than on the fact that, at face value, you didn't honour the stop sign for long enough to avoid the accident ever happening.

I certainly agree that the other driver might be expected to have made more effort to avoid hitting you. However, given that he did unfortunately hit you, you have to look at who is actually to blame rather than what might have been.

At the end of the day, it's up to you to decide how far you want to argue it. With the right lawyer, who knows, you might even be able to settle the claim without too much adverse consequences.

Good luck and stay safe man