what's better? Capturing the bigger die or rerolling the bigger vulnerable die?

Button Men Game #725034 

Skills in this game: Option, Focus, V Swing

Player: ElihuRoot *Dead Dude* *Fanatic*
Your Button Man: Oni (4 10 f12 f12 V)   Score: 31 (-3.3 sides)   Rounds Won/Lost/Tied: 1 / 1 / 0 (Out of 3 wins)
Your Captured Dice: 12-sided die, Option 6/12 6-sided die

4-sided die	10-sided die	Focus 12-sided die		Focus 12-sided die
2	5	1		9 Captured last turn
10-sided die	12-sided die	Option 4/12 (with 4 sides)
7	6	1

Opponent: lephantman13 *Perfect Memory*
Button Man: Mischa (10 12 12 4/12 6/12)   Score: 36 (3.3 sides)   Rounds Won/Lost/Tied: 1 / 1 / 0
Captured Dice: V Swing 11-sided die, Focus 12-sided die