Hands down the Delica. For years, I ignored it due to the price (pretty snobby of me). I always liked the Endura and the PM2. I carried a Sebenza for the longest time and was content with it, however on a whim I picked up a Delica when I lost my Seb. I do not like clipping knives to my pocket as I loose them more that way then just tossing them loose into my pocket. I have come to love lock-backs due to their ability to stay closed better than any other lock. After I carried the Delica exclusively for 4 months straight it suddenly dawned on me that I do not need nor use more of a knife then the Delica. It is perfection. Yes I still have Enduras for when I know I am going to do some light construction around the house (use only when I know I will have thick gloves on - the extra handle real-estate helps) and yes I have some Cold Steels to beat on (dear Lord they can take excessive abuse) but I always, always, always have a Delica on me. It is small, lightweight and if lost can be replaced easily (although I think I would be more upset about loosing a Delica than a Sebenza oddly). I have had the opportunity to get more sebenzas but I end up buying more Delicas. In fact I recently tried a small micarta Inkosi for two weeks or so but ended up selling it and instead now I have a fully serrated Delica, a purple Delica and a back up ZDP Delica on the way. Plus I just pre-ordered two of the new Delica Wharncliffs. Needless to say I love this gem of a knife.