that's a pretty wild group of skis from which to choose. the anthems and invaders are pretty similar in that they are both soft and symmetrical park skis. the ar6 is a little bit more all mountain oriented, but still relatively soft. the msp is a stiff charger all mountain ski that is equally at home hitting big park jumps as it is bombing pow and baked out afternoon crud. you should definitely narrow the group down on your own before you ask for advice.