Obvious points: there's a difference between assaulting someone and defending yourself — attempts to draw moral equivalency feel unconvincing to me, especially as in the legal system you can't just ignore the trolls. Also, Samsung also not only can but does use its patents on actual inventions in order to further its business, through the funds that it accrues under FRAND licensing terms. It voluntarily bound itself to that sort of licensing when it pooled its patents during the usual industry standard development process.
I think their only hope is on the interface stuff. I'm not sure what the normal preliminary relief is, and hence whether a banning order would be considered disproportionate by the court, but it wouldn't be surprising if Apple were about to find out.