Just a few suggestions on BOTs to eliminate some of their downfalls and hopefully make them a bit more usefull without outdoing real players. These suggestions are mostly based around a cleric/healer BOT. Would be nice to see some of this changed/improved.
1. It would be good if the BOT does not try to refresh buffs if you are in combat as this takes away his ability to heal during this time.
2. Complete Heal is one of the most useless spells to a cleric as it doesn't heal a huge amount and takes way too long to cast. Either a revamp of CH so that it is actually a 'complete heal' or the ability to turn it off on the BOT or remove it from their spell list. Every time it decides to cast this, in a tough fight it is death

3. BOTs seem to not be meditating anymore between casts so get low on mana alot earlier.
4. When grouped with another player there seems to be a group bugging that occurs that causes the BOT to not heal or do anything in the fight. With just the BOT in group it works well but add a friend to the group and it will bug out alot. Not sure whether this is a group bug or a BOT bug but it occurs alot with zoning also.