The legion has the more interesting story.. but of the two factions, it's horde ofc.. I read that Sylvannas is doing really interesting mission, and Genn's just following her footsteps trying to catch her. She's in the driving seat for the story.
but that shouldn't surprise you though, the horde's always been more colourful and blizzard admit they like writing for /about it more. Nothing's changed here. Alliance don't really get interesting stuff, especially outside humans. The closest you get is seeing alliance aligned races in neutral capacities.
but I think most people seem to view Warcraft through the horde and alliance. which is why every time they see a person of a race that belongs to one of the factions, even in a neutral capacity they think its faction favouritism, it isn't if the person is in a neutral capacity, everyone of a race who has his members as part of either faction should not be viewed exclusively in that capacity - unless they are actively part of that faction. When you see Tirion, Khadgar, Illidan and for a while even Malfurion and Thrall, especially Malfurion as he didn't form the alliance, we shouldn't be thinking alliance or horde character.
Alliance obviously. Our King died a awesome death. Vol'jin died on a throne.
I really think that was some nice death for Vol'jin. We already had our share of epic anime death with Varian (which suited him). Vol'jin wasn't a flashy heroe. He was a Shadow Hunter, he needed a discreet, political dead. I personally think his death sequence was marvelous, empowering Sylvanas character along the way. That image of Sylvanas quite while Baine and Lor'themar transported Vol'jins corpse was really touching. Giving such deep feelings (when she hesitated to call retreat, when she was angered then surprised by Vol'jins words, when she managed to rally the Horde after the ceremony) to an undead, to a character many thought was "dead inside"... Man. Vol'jin death is really moving forward the Horde - and what i LOVE more - moving every Horde member close to each other. The Horde needed a bonding moment, and Vol'jin death was that.
I didn't say he couldn't, but he wasn't technically even on the ship, so the actual commander would just act like they normally would in that situation. Since the cannons weren't shown to be firing, I can only assume the commander didn't think it would do anything.
How would you know? Do you have a grimoire on giant ass fel reavers? No one on the ship thought it would help to fire the cannon, so why would you assume it would? Hell they could have even been damaged, or unable to be used (the ship was being grabbed after all). It's not like they'd be fired even if they could anyway because it would kind of defeat the purpose of what happened.
Alliance storytelling always was quite weak. But this time, IMHO, it'll be quite good, and, probably, better than Horde's story.
Unfortunately, Horde doesn't have many interesting lead characters, we have Sylvanas, but that's pretty much it. Thrall's in emo-mode, Baine's Goody Two-Shoes. Gallywix and Lor'themar don't really care about anything.
For what I know, I think Horde's is more interesting. Sylvanas as Warchief and the search for more Val'kyr. Alliance-side there is Genn and Major Rogers hunting Forsaken for revenge. You may enjoy it if you hate the Forsaken and yearn for revenge for anything the Horde has done over the years, but we know this is the wrong course of action when the fate of Azeroth hangs in the balance. It won't lead to a Siege of Stormwind raid, but at some point Genn will have to admit this is a very shitty time to act on his personal vendetta and you're doing these quests aware of the fact. MoP was similar to Horde players, as we did anti-Alliance/Horde empowerment quests knowing it would all fall flat by the end of the expansion.
Now you see it. Now you don't.
But was where Dalaran?
Neither, the expansion focus on the class orders and the factions are secondary to the story.
This is why I really hope they don't fuck up Sylvanas. Every story that involves her shows her as a complex character, and the cinematic shows her as complex with emotion and internal strife.
I love Vol'jin but he was very flat in terms of character development. It's always "the spirits this, the spirits that". He wasn't very complex.