1. Victorinox One Handed Trekker Non Serrated 111mm
2. Victorinox (or Wenger) S557 85mm
3. Victorinox Huntsman Lite 91mm
4. Victorinox SwissTool RS 115mm
#4... Heavy, solid beast that mainly lives in the car... it's role mainly involving use of the solid pliers, but it can do most things I could want... merely a bit heavy for the EDC pocket carry. It's #4 for complimenting the existing tools well with additional functionality.