Back in the technical test, Deflect was set to just the left stick. (it was way too over powered.) With the recent changes though it's really not even used that much compared to Parry. Considering that Parry will grant you an auto heavy or "Lightning strikes twice" double overhead light swing. The Deflect can give you a Windgust or a punishable Hurricane Blast.
Also, it seems that Deflects are WAY harder to pull off than the basic parry. What are your guys opinion about this?
Given that the top light combo and Wind Gust will give you basically the same amount of damage, there's no real reason to opt for Deflect with its tighter window than Parry. That said I tend to miss late on both when I get them wrong so parry is safer for me because if I Parry too late I still get a block, whereas if I Deflect too late I get hit, but for players who tend to use both too early when they miss the timing then Deflect will be safer as they can dodge.
Out of the the 3 assassins Berserker is really only one with a good guaranteed follow up (free GB) compared to the follow up they get from a parry. Based on what people are saying about the unbreakable defence meta in high level play though the problem might actually be that parry is just too strong in general right now.
According to the video in this thread:
http://forums.ubi.com/showthread.php...amurai-classes
You actually get 7 more damage from the Parry > 2 top lights (32), than you do from Deflect > Wind Gust (25).