Here are my 2 cents. Warcrier will work very differently in live. Now you are regenerating MP while doing physical attacks. This is a bug and will be adjusted/removed on live. Therefore you will be strugling for MP while leveling. For solo you cant go anything else than heavy if you want to melee or you will be sitting for HP/MP all the time. As weapon you will be using anything that has higher dps than what u had before. Being it more atk.speed or more patk. You wont be able to sleep and dot targets. As it works right now it is a bug and every slept target will be woken up from sleep upon receiving dmg. So robe and magic weapon wont work for solo. For party you will need to go robe since all u care about is MP/MP regen for buffs or CC. Weapon doesnt realy matter unless you are helping with AOE dots. However it is still better to use magic staff just to have more matk to land debuffs easier. To sum up. I would use heavy+melee weapon in lower levels, up until 44, then i would try to get robe, to have mana pool for buffs and magic weapon for CC assist. But it is unlikely that you will be able to solo past lvl 35.