Interesting mix in this party.
Paladin - melee defender
Monk - melee striker
Runepriest - melee leader
Sentinel druid - melee leader (a bit unusual with animal companion in the mix)
Hunter - ranged controller (with a bit of striker)
Sorcerer - ranged striker (usually with a bit of controller)
It means we will have a bunch of folks able to take attacks to give our ranged people time. My paladin doesn't have a lot of mass marking...so he can mark up to 2 monsters a round, but not much more. Two melee leaders too! I am looking forward to that!