Which of the defensive ratings do you put the most importance on?
Range
Glove
Arm
Accuracy

Is glove more important than range?  Which is more valuable in the long run....Range95/Glove80 or Range80/Glove95?

Is it better to be accurate with the arm as opposed to throwing bullets?

It depends on the position.

Depends on the position and the "average rating" that WIS puts out. I will usually give up a little range before anything else. In LF I may give up AS and AA before anything else but I try to keep at least 3 of the 4 ratings at or over the "average" which I treat as minimums.

Of course sometimes it just depends on what your options are and if you are comparing a stud hitter to a guy who has trouble hitting .225

 So for your example I personaly would  take the 80-95 over the 95-80 at SS (as long as his AS and AA are good) but I may take the 95-80 guy in CF over the 80-95 guy.

Posted by MikeT23 on 3/31/2011 1:13:00 PM (view original):
It depends on the position.

No Sh*t

They are all important, but their effect is manifested in different ways:

Range - the ability to get to balls.  Good range shows as a plus play, poor range shows as a minus play.  Balls that you get to may become outs.  Balls that you do not get to are almost always hits.

Glove - fielding the ball cleanly.  Poor glove results in errors.

Arm strength - "throwing bullets".  Good arm strength shows as plus plays, poor arm strength shows as minus plays.  For infielders, poor arm strength might be the difference between a runner beating out an infield hit.  For outfielders, good arm strength often shows itself as preventing runners from attempting to take the extra base, or throwing a runner out.

Arm accuracy - hitting the target.  Poor arm accuracy results in throwing errors.

As to what you might value more . . . that's a matter of preference based on what I described above.