what are the highest UAF or UDFs you have seen? Critters or characters

I know I've seen a few characters approaching 700s for Attacks but I am not sure how high a character Defense can go. I've seen some invasion critters with over 1000 for defenses. Also is there a calculable Max for either of these for a character?

The UAF record ought to be somewhere in the 1000-1200 range. Getting towards the upper end of that is going to take a group of characters with extreme training and enhancives for their group bonuses but you shouldn't have too much trouble getting over 1000 with a group containing capped bard, paladin, cleric and warrior that are reasonably trained for group benefits.