i voted for R6... proabably more because that's what I want but if i have to carry one around all day probably be the RMD or 511. 5" seems to be plenty of blade for heavy utility/edc tasks without the extra mass getting in the way for lighter task like cutting a string or something. I also think that 5" of razor sharp 101 sees more than capable of making a mess of anything that needed making a mess of...