Dude, that's a toughy...
Hmm...if I lost all my memories, I would no longer be who I am, but then...if I never made new ones, I'd be stuck this way...unable to become more.
I honestly can't choose, but if forced to (like in the case of amnesia), I hope and trust in God to restore me and further who I am. Thus, I choose to lose, though the loss would be great, indeed.
Similarly:
Which would you choose (for the rest of your life):
A) To never feel anything at all...
or
B) To always feel the same (aka: one emotion or the same constant mix of them)?
*inspired by lyrics from one of my friend's (Johnathan Hepner) songs* "Well It's the same I guess to feel as if you're feeling nothing to wake up everyday feeling the same."