I would like to think that we as a society would treat someone about to die as a result of homicide (which is what the death certificates of executed prisoners give as cause of death, but it is legalized homicide, of course) rather better than a common murderer would; I think this says something about who we are.
Of course, since my sister's career was all about defending these people, I tend to see most of the condemned as victims, too, more or less. You wouldn't believe the life stories of some of these people. I once asked my sister if there was any common thread to her cases, and she said that every killer's or accused killer's case she handled (and she had several innocent people among the guilty on death row over the years, for whom she worked on appeals), her entire career, involved addiction, mental illness, or both. She worked frantically on one guy's case because he hadn't done it (a witness had lied -- they had a later admission), he was seriously ill, and the prison refused to provide the doctor-mandated special diet; she said "We will get him off, but it may take years, and he may not last that long. All he wants at this point is not to die in prison." The prosecutors...you wouldn't believe some of the shenanigans they get up to. One of them once filed, no joke (I saw the paperwork), "Petition to destroy evidence". The guy actually asked a judge to allow them to destroy evidence from an old case after an appeals lawyer requested a DNA test, the object being to destroy the evidence rather than to get at the truth. Then there were long and vigorous efforts to get people to take IQ tests again and again until they passed one with a high enough score that the courts would execute instead of finding the person mentally unfit, ditto the mental health care expended, at taxpayer expense, for the sole purpose of getting the guilty person sane enough that the state could legally execute him.
It's a foul system that does nobody any good, as far as I can tell. (After speaking to anti-death-penalty campaigners, George W Bush said that he understood from all the facts and figures that the death penalty is not a deterrent, but in his gut, he couldn't shake the feeling that it was a deterrent, and he had to go with his gut.) And I wouldn't begrudge even the worst of them their last meal. Most of the victims didn't get a last meal, true, but most of the victims didn't know that they were coming up to their last hour, either, or that death would come to them wearing a white coat and bearing a needle, in a parody of the health care they didn't get when it might have done some good...
EDITed to correct typos (I thought I edited it yesterday, but the corrections haven't shown up)