There are average players out there, you know those guys who can block 3 or 4 hits who get easily confused by feint lolstab combo
Seems to me that you either ackowledge player as skilled if he can block some hits or unskilled if he can't do that.
Skilled: can block till tomorrow, have attack patterns, know how to chamber etc.
Averages: can block some shots, attack randomly, can feint but not very succesful, can't chamber
Noobs: can't block at all (maybe first slash strike), easy to kill, can be killed by holding slash