Heyho:9
go for Static Shock first and Diffusion Chain Second its by far the easiest way to handle with p3 and a Warlock will make this a lot easier too (Portals and AE Burst). Try to have everybody expept for 3 ranges/healers stacked arround the boss erverytime when the lightning bolts spwan, so you will only have 3 of them. Once they have spawned let your Dk Grip them and stun them as long as possible. If they are not stunned keep moving everytime they are about to jump - you can dodge them completely.
3-3-2-2 is a good way to do the first transition: warrior tank+ boomkin, paladin tank+ WL, 2dd+heal, 2dd+heal. Anybody without big movement speed increases should be on the discs platform (feathers+leap of faith)
For the second transition we handle it 3-3-4 warrior tank+boomkin+WL, paladin tank+Heal+dd, 3dd+heal. (Let the WL go to either the south or the western platform so he can get the portal for p3 ready, that saves a little time and makes sure you have enough stacks on it for the first thunderstruck)
Sorry about my english but if you have further questions feel free to contact me