Weapons don't add to your defence bonuses. The best armour, however, would be full rune.
the most expensive: blue partyhat the most useful combat weapon: corrupt dragon scimitar
depends if you have good armor, weapon and food you should kill moss or hill giants
For F2p it would be the Rune 2Hander as it has the highest str bonus, but i prefer the scimitar:D
You need 99attack,super attack potion, piety, and the best weapon, armor that increases attack, and fight someone with low defence.
The scimitar is a good all round weapon. For your level a mithril one will probably suffice.
The corrupt Dragon 2h is best tradable weapon on F2p, although is degrades rather fast. The Gravite 2h is not purchasable with gold, rather Dungeoneering tokens, and also degrades, but is the best weapon in Free-to-play.
Scorpians.
It depends what your strengh is, if your strengh is higher you should get a warhammer or battleaxe. If your attack is higher you should get a sword of some type_______________________________________________________________________Y..Yes, it would depend on strength BUT, it would also depend on defence, because there's no point in having a high hitting weapon that has terrible defence, but i'd recommend claws or halberd.add me on runescape - money mad54
The most expensive drop you can get on runescape is the corrupt dragon battleaxe at 3.9m
Dragon claws
Gravite shortbow.
The best weapon is the one that causes the greatest amount of damage to the chosen enemy. Once you decide what enemy you want to attack, look up its weaknesses, and choose a corresponding weapon. For example, if it is weak to slash, use a weapons that has a slash attack, and select a slash attack in combat styles.