
Boromir |

These are some really good suggestions. I wish I had a better grasp of these options from the start.
Divine summons = sacred summons. At 5 you can toss out lantern archons as a standard action, which are amazing little helpers / damage deals. At 7, d3 archons, at 9 d4+1 with more hp. They radiate a low-DC or be -2 to everything; and their attacks bypass all dr. AE buffs make them even better :).
The divine summoner who calls in reinforcements is very interesting. Are there a variety of aligned creatures which can be summoned or are Archons the primary choice?
Are there any other feats to round out that type of character or are spells the main focus beyond the three feats you mentioned?I'll be asking to 'retrain' these characters soon, but I will try to stay with feats which fit within the context of their previous actions. For example, I'll pick up Power Attack for my paladin at the next available level, but I would ask for Swap Place, Combat Expertise and something else now. These feats could have explained some of their success and style so far.
The clerics ability to channel energy is something I don't fully understand. We have been using it as an out of combat heal mostly. What options are there to improve its utility in combat?