Depends on what larger blade and for what purpose and environment.
For EDC I would choose an izula (or II) and a 3. Not sure where you are going or doing, though.
II takes up little space and is a great small knife. The 3 takes up more space but can get a serrated version. I'd probably go serrated 3 if I was carrying a 5, 6 or Junglas....unless one of those were serrated. I'd then maybe go with a II.
If you have the room to clip a 3 molleback onto something the space issue would be resolved. Izula or Izula II fits in pocket very easily without noticing it much.