I don't recall the summoned things giving xp. If they do, I don't think it's worth doing it for that purpose alone.

As for noobs getting hit, you need to find spots where they are out of LoS, but still within exp range.

Even if there are walls and floors between you and the lowbies, they will get exp just by horizontal distance.

A test for this is Shadow Fang Keep. Park your lowbies just in one corner near the lower couryard. Pull the last boss to the other end of the hallway up top, and your lowbies will get exp.

Set the looting to Master Loot or Group Loot, and your lowbies can get loot.