Originally they were described as 'The Big Brother Of Skirmishes' by one of the producers, at some point Turbine decided they wanted to stop comparing them to skirmishes entirely . I have heard no statements from the development team or anyone prior to this post by you that would label them Skirmishes 4.0 or 5.0.; I felt my Skirmishes 3.0 statement was generous and originally had thought I'd write Skirmishes 2.5;
I could have almost as easily said 'Wolfs Cleft 1.5'
Epic Battles Pros:
Upscaling
Variety of Roles (Though some are very suited to specific battles more than others)
Epic Battles Cons:
Fixed Group Size (All skirmishes have ALL Group sizes except for Survival Barrow Downs)
Automatic Start (Most Skirmishes allow us to say 'We're ready to start')
No guaranteed Rewards Path (Except for Raid Skirmishes, its always currency->what WE Want)
Daily CDs (Solo Skirmishes dont have any kind of Cooldown!)
Tend to rely more on Brute Force than strategy. (Equally true of skirmishes)
Feels more like a 'Direct your Soldier' / or 'Play with the Clickies' than a fight we're on the front lines for.
I do have to agree with some of the cons. I would love a more variable group size, but the Deeping Wall should be the only Raid. Also a "We are ready" command of some sort would be nice. Don't even think about walking away to see why the baby is crying with the way Big Battles are set up. But you must have missed out on the last build, I got some amazing jewelry from the Big Battles. And the side quest CDs should have a cooldown. People would just farm if they didn't. I also disagree with the brute force comment. The Big Battles are more of a RTS game than just DPS stuff to pieces. Finally this is the Rohirrim's battle. We are there to help guide them and use the knowledge we would have gained as the legendary warriors we are at this point in the game.