Well those skis are all quite different. If you want a more park orientated ski, go S4. If you want something more powder orientated, go Blends. Both skis will be fine for what you want to do, S4 is cambered, stiff and slays park whilst skiing well over the rest of the mountain. The Blend is a bit fatter, softer and has tip rocker, so it'll be better for skiing pow, but won't ski as well on groomers or be as stable on big jumps.
Out of all of the skis available, I'd choose either of those two, depending on what style of ski you prefer, stiff and cambered vs. soft with early rise.