I do favor perhaps a section of the ship with smoking allowed cabins. I think the crews do an incredible job of cleaning - I have never noticed the smell of smoke in one of our cabins, and quite frankly not really much walking through an empty casino. But I would rather not have my neighbor's smoke wafting onto my balcony it is unpleasant.
A Bad Day At Sea [with power] Always Beats A Good Day At Work
Alaska 2014 - haven't picked a cruise yet
Carnival: Glory 2004, Destiny 2008, Splendor 2009, Freedom 2011, Valor 2012, Dream 2013
Celebrity: Summit 2011
Princess: Ruby 2010, Caribbean 2013