My first becker was the 2. I love it because it can do everything. I eventually got the 5. 5 has a thinner blade so its more slicey. I'd say BK5 is more for food processing and BK2 for wood processing. But since I've put my BK2 through a WorkSharp its very slicey now. They're all great knives but I'm partial to the BK2 because its such a power house of a knife. You won't be disappointed with a becker.