Platinum players, if not they are not going on a speed battle, will have around 400-500 resist on their defense. To answer your question, yes it has great value. 

Critical rate, if it exceeds 100% then it is a waste. 

Critical damage, the higher the better on a nuker. 

ClosedPoly said:

Is there any value to resist that exceeds 100?  Same question for CR and CD. 

yeah.

resist is not % like crit rate, it is just score compared to attacker accuracy to determine debuff landing / resisted.

The more you have it, the better chance of resisting debuff (but no matter how much you have and how low attacker accuracy would be - there is always a chance to go both ways:

0 RES against 500 ACC can still be resisted by chance (not sure here but 15% chances rolls around my brain now)

500 RES against 0 ACC can still land (same as above 15% ???)

Zelotah Aura last the entire fight whether he dies or not.

AS LONG AS -----> Zelotah is in leader position + fight you are having is an Arena Fight.

Funny, Rhazin add 90 Resist, my champ is 257 resist, total = 347 resist and I still got Provoke, maybe all of my arena opponents are WHALES who bought all 6* artifacts from Plarium. 

0 RES against 500 ACC can still be resisted by chance (not sure here but 15% chances rolls around my brain now)

500 RES against 0 ACC can still land (same as above 15% ???)