I have both the BK11 and the BK14, and honestly, unless I'm planning on drinking (re: party time!), I choose my BK14 over the BK11 every time. They are both just a little short for my hand and the pommel of the BK11 digs into the meaty part of my palm. The nice round end of the BK14 causes me no trouble at all.
Either one is a great blade and up to the task of food or fire prep, it all comes down to personal preference.
C