Do you follow a certian category such as [Directories, Blogs, Comments, Forums,Affiliates etc. etc.] or do you blend them in? What order would you say you get backlinks in.
I don't believe that there is a certain or better or best order of backlinks to target first. Start wherever you prefer and you will be alright. I would strongly suggest that you do go for quality versus quantity but in any event the order which you follow would seem to make little if any difference.
Start out with whatever you are comfortable with and can get the best results from. Then plan your days to expand bit by bit.