You should be good above the shops. I wouldn't book deck 6 above the forward of aft lounges though. Notice that there are a lot of suites on deck 6, I think you will be fine.
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