Well, I went with the 1h sword. It may have been a mistake, but I want to tank, and it just seems like a better weapon for tanking. Additionally, this allows me to get a shield with an effect on it as well.
Some part of me still thinks I made a mistake, but ultimately I decided to go with my heart in this, rather than make the 'logical' choice.
I do think the mana regen on a screaming mace is more than a prismatic weapon, but this did not stop our guardians from taking the 1h weapon.
-I