Originally Posted by
tescrin
Targeted always.
Targeted can't hit lands but Hymn can. If you Hymn first you risk missing with your Targeted purely because you hit the same cards with hymn. If you Target First you can also see if it's worth hymning yet; or wait until a little bit later. The odd opponent who plays Baloth, Dredge, Reanimator, or Loam or something also won't get a free win off of you feeding him.
Not only that, but if you want lucky-land-screws you want to minimize the number of non-lands in their hand; again Target First gives you the better chance here.