Happened to run across a Cosmic Crossbones medal this evening, and was trying to figure out a good fit for it. What about Hybrid Green Goblin?
The War Skrull is pretty much consistent BiS, but I think the Crossbones looks good as well. In comparison, between tow perfectly rolled , it has:
* +408 constant EDR vs conditional +545 EDR that is only up 66% of the time (net +363 EDR)
* +408 constant PDR vs conditional +545 PDR that is only up 66% of the time (net +363 PDR)
* +5% Attack Speed (moar bombs, moar often!)
* +289 Deflect Rating (never a terrible stat...)
* +1 Energy (4% Base Energy Damage -- lines up nicely with constant increases)
* Each has constant +1 Fighting
* We lose 1905 Health (this doesn't feel like a big loss)
* We lose 20% power duration, but that only affects ~3 powers (Pumpkin Bomb[main spender], Carpet Bomb, Gas Pumpkin)
* We also lose a conditional +2 fighting that will be up <66% of the time due to GCD.
I think it seems like a good alternative, if not a better option due to the constant increases as opposed to the conditional nature of the War Skrull.