Depends on the mon and it's role but generally it's like this:What are the best spreads for HP ice and fire?
For HP ice:
30/31/30/31/31/31 if mixed attacker/physical
31/30/30/31/31/31 if special
31/31/31/31/31/30 if TR
For fire
31/31/30/30/31/30 if physical (TR)/mixed (TR)
31/30/31/30/31/30 if special (TR)
And HP fire is always with even speed.