I hate spell speed as a scholar..
Since as an amazing single-target healer I need to spam physick/adlo on MT the whole fight, high spell speed makes my mana drains faster. And even though scholars have great MP regeneration, mana is still a big problem when u progressing new contents, because u need lots of over-healing/shielding to raise the party fault tolerance rate to as high as possible.
Plus I dont feel benefiting much from spell speed when I dont have any spell longer than 2.5sec cast time and I have 3 instant Off-GCD heal every minute.
For these reasons, my BiS stats are crit+piety.