All three of my Contenders are blue. My first one was used, and I didn't have any choice. The next two are G2s, and I got them before Stainless was available so again no choice. Many of my other guns are stainless, and when I have a choice I pick that. As pointed out in a previous post stainless holds up better in the wet. And more often than not in hunting season we have rain and snow here in Wisconsin. It takes less work to keep a stainless gun in good shape in the wet. They can't be put away wet, but sometimes blued guns start showing rust while still in the field.
Good luck on your choices.