Depends if you are a member or not, and your stats. Soul Wars is a good place to train, as I get around 70K experience in 3 games.
Use a battleaxe and no life.
Edgeville dungeon
just beat st00f up until they die and their guts come out runescape experienced player-p purestr (lvl 80)
Warriors Guild, same place where you get defender, on those giants.
Fight Ankous in the Barbarian Stronghold (west of varrock)
It certainly does. Strength if you are a mage affects the strength of your hit. Not as much as a high magic lvl, but still alot.
A Rune 2h is a good weapon for a high lvl strength person on Runescape. A rune scimitar is a perfect weapon for a lvl 46 attack because it is designed for attack.
It is illegal to trade accounts in the real world, it will get you banned.
It really depends on what combat lvl you are but its prbably hill giants or moss giants
lvl 79
From my experience the rock crabs found in rellekka and drags if your a higher lvl Rune wiki has a good combat guide too
Moss Giants inside varrock sewers.