I know your questions in the OP and poll were directed at meat eaters, but the title question wasn't so I'll respond to that. Besides, I doubt many meat eaters would be able to select options 4 and 5 in the poll.
While I personally think that anyone that is not willing to kill an animal and butcher their own should be eating that meat, I'm also a realist and realize that that's not a realistic expectation give today's societal ethics.
I think quality of life (and death) of an animal is an important consideration when it comes to ethics. There is also
evidence that free range-meat is superior in quality over traditional husbandry practices. But sadly, this comes at an additional cost to the consumer and many weigh the decision to sacrifice quality over cost and go with the less ethical choice.