I'd wager Critical Hit rate is probably the best stat for Bards at the moment mainly because dealing critical hits are often worth more than the 50% extra damage (Bloodletter reset for example).

That said when it comes to gear I am going for the more conservative method of retaining the Artemis Bow's accuracy just in case it's needed. Therefore I'm going +44 Accuracy and +31 Critical Hit Rate.

By the way, I've nowhere near finished the Novus quest yet, so I'll be keeping my eye out on this thread to see how other bards are upgrading their bow.