I think the way things are likely to go in DW is more specific. So, if you have a high STR you probably want to Hack & Slash, and with a high DEX you probably want to Volley, as a general rule. A high CON character can probably handle Defend more readily (as they're tougher). More armor can be advantageous, but can also clearly cause you issues. Beyond that, advantages and disadvantages are much more likely to play out in terms of danger avoided or not. If you get the drop on your opponent, then you can unleash damage on them without even needing to make a move (IE the enemy is helpless, just damage them). If OTOH you foolishly find yourself needing to advance against a prepared opponent, then you probably need to Defy Danger just to get near them. Frankly 'cover' and such are not concepts that are specifically covered by some sort of modifier. They could come into play via the explanation of a DD check "I go prone, the arrows miss" or in terms of 'hold' gained through a Discern Realities check "what is useful here to me?" or Spout Lore "It is advantageous to seek cover!" etc. Notice these are much more focused on what the character DOES vs simply the nature/geometry of the situation.