Grandmarshal's Stave - Alliance

Why does it feel that the GM Staves is so much worse than the 1h + off hand combo, is 1% crit better or +25 SP?

GM Stave:
Crit 2% (+1%)
Spell Power 81 (-25)
Stam 53 (+8)
Int 23 (+2)

GM Mage Blade + Off hand:
Crit 1% (-1%)
Spell power 106 (+25)
Stam 45 (-8)
Int 21 (-2)

Yeah but it looks sexier #staff gang

depend on the class i guess or if you have some pvp offhands (like the sprint one etc)
def going for the staff as it’s way cooler.