Yea, i would recommend either health recovery or rate of fire for assassin. I keep speed and skill recov.
In other words, crits aren't important if you're a soloAss. If you're doing what you're supposed to be doing and taking out Turrets, then hell yes you want crits.
Actually, I think Rate of Fire and/or juice would be better choices. Juice is when you really wreck their base, so juicing up faster helps, and rate of fire means you slash things down faster.
Does Rate of Fire have any effect on Sword slashes? For the most part they hit as fast as I can pull the trigger anyway.
You are correct. I actually never noticed it. This will be very useful in a Moneyball destroying build.