LOVE hands down (no pun intended there). Except that it has been revised, but probably still good.
Now, if you are a huge Michael Jackson fan and not so much of a Beatles fan, that might change your decision.
If you have seen Mystere or "O" or the other acrobatics-heavy shows, KA will seem like more of the same, though all are amazing. I think I slept partly thru KA.
Still, if you are a fan of Beatles music at all, you'd like it a lot.