Put on headguard and gauntlets then find out by sparring with wooden weapons. Its great fun!
Of course a weapon is powered by the exponent and I cant really use them at all as intended but I find straight sword to be harder to defend against when sparring with people who can use them. I would use it like a kriss myself.
When you mention the halberd do you mean you would prefer it over the spear? Would you not agree the spear can pierce the opponent before he can swing the halberd and the halberd cannot thrust as well as the spear?
For 'melee war' I would probably stick to long and short sword with spear myself.