I would go with an original Series 70, if I could find one. I've had Pre 70, Series 70, and Series 80. Of the three, I've had some really nice ones of the Series 70 type. Function fine, and really good fit and finish. Nothing wrong with the Series 80, but I can live without the additional firing pin safety. The modern 1911 repos are hard to come by and might even be considered collectibles instead of shooters.