Colour is subjective - choose the one that appeals to you the most. I guess blue is less polarising, but there are markets for both.
If you don't have the packaging then the watch is worth less, but not necessarily ridiculously so. With the Emergency the packaging is slightly more important, especially the tester.
Titanium versions of the Pro and Pro II bracelets are covered here -
http://www.breitlingsource.com/bracelet ... nium.shtml and
http://www.breitlingsource.com/bracelet ... ium2.shtml. The links are differently shaped and the clasp is improved on the Pro II.
Information on dating is here -
http://www.breitlingsource.com/articles_dating.shtmlPrice is covered in the FAQs, #2 here -
http://www.breitlingsource.com/articles_faq.shtml#8