Thats it, it has to be a typo, i wont believe anything else
+3 1d10 greatsword? are we back on ad&d?
(would be ok if it were still the best weapon)
the greataxe has a +2 d12 dmg and a heavy crit to boot
the bastard sword is superior all right
but +3 1d10 and versatile?
so if its best to use...