-60 Attack (no duh)
-61 Strength (Stay at this level for now, minimum level to hit 13-13 with dds specs, can go up to 66 Strength in the future)
-58-62 Hp (This is what gives you an advantage over other players, the higher hp = better)
*Keep in mind that if you level your Hp too high you won't be able to find stakes
Prayer is N/A (everyone looks up their opponent so this has no affect, don't worry about it). Keep in mind that the max hits for dds specs are 61/66/73/79 Strength.
I'd suggest leveling hp through range w/ iron knives, a good spot would be on waterbirth island rock crabs (afk-able).
Goodluck