Skills : Van Thrust / Raider Fang / Recover SPD
I've read somewhere that for a crit-type,
more number of hits means more chances of (winning) landing a critical.
So the priority is max these two ASAP,
the rest are just personal preference.
As long as it doesn't require a two-handed sword, hey, go crazy.
For the Recover SPD, hey, you got the DEX anyway, and this works better if you have DEX, so why not?
Then again, it's your choice.