I'm for the death penalty. As stated earlier, a death sentence carries with it an automatic appeal. Once that appeal process is over with, carry out the execution.
That's where my beliefs differ from others': I do believe in the "eye for an eye, tooth for a tooth" concept to some degree.
If a rapist is sentenced to die, distasteful as it sounds to some, he should die while being raped to death.
Sentenced to die for stabbing someone, slashing their throat? Guess what chief......you're gonna be bound and made as helpless as your victim(s) were, then the executioner will come in and deliver like or identical penetrating trauma to YOU, and you will bleed out just like your victim(s).
Apply a method of death identical to whatever they were sentenced to die for.
Since I don't really know how the criminal mind works, I can't say for sure that knowing you are gonna die in the same manner in which you murdered your victims, but I know it would give ME pause and make me think.
As for the nonviolent, or not as violent criminals.......take them out into the deserts, give 'em tents. Running water for bathing/hygiene only. Food would be bread and water and whatever they could get to grow. No more sheltered life in a building with a roof over their heads. Don't our troops live in tents? If it's good enough for US troops, it's more than good enough for the criminals.