I hate to say it, especially in this subforum; but, for this blade length, I generally make other choices.
That said, between the two mentioned, I choose the BK2(2) without hesitation. I agree that most would probably find the BK10 better for general use...I simply don't have the appreciation for it that I do for other Beckers. I'd rather jump up to the 7, or down to the 16. (Luckily, I also have the option of using the "BK12"...and I often do)