Meh. It’s a wash. They both suck.
Sylvanas went from a dark and cool villain to a stupid and cartoony one. A cool and unique concept (dark knights are a dime a dozen, but dark archers are comparably unheard of) completely smashed in with the stupid end of the villain bat.
Alleria went randomly “dark” for… “reasons” because I guess just being a Ranger wasn’t marketable enough? She was one of the single greatest and most powerful champions of the Alliance - they didn’t need to 90s her up with all this dark and edgy void BS.
Sylvanas is hitched to one of the single most irksome and annoying characters in the franchise who’s greatest contribution will be when he dies. Honestly, I hope we don’t kill him and that Sylvanas does, because that level of betrayal would be the only way his death could hurt him enough.
Alleria is hitched to the single greatest disappointment in the franchise, a character who should by all rights be running the show, a former Supreme Commander of the Alliance. Instead this character’s first act in the WoW was to get caught in plotgoop and get saved by his wife. He and Malfurion should start a support group. Now he’s put on even footing with Liadrin of all worthless characters, and… Turalyon should have stayed vanished.
Sylvanas’ people, the Forsaken, have been devolved into the most stupidly shallow and blatant of villains which is not only a massive disservice to them, but entirely redundant. You know what we call mindlessly evil undead? The Scourge. We HAVE one of those already! The narrative didn’t need another! While before the Forsaken offered a unique angle on tragedy, now they’re like their mistress, dumb, one dimensional, shallow, and entirely ruined.
As for the Void Elves… there is no excuse for this being a race. A paltry handful of Elves gets randomly Void-ified and that’s a legitimate playable option? No. That’s the most preposterous, idiotic thing to come out of an expansion that’s wholly founded on idiocy. This wasn’t just Blizzard saying “RAR NO HIGH ELVES!!!” (something I wholly agreed with before this gibbering madness) - this was Blizzard giving a big purple tentacled finger to anyone who wanted them. High Elves weren’t a valid option, but Void Elves invalidate the concept of validation and in comparison… yeah. High Elves would have been better.
In short, they’re both terrible. Neither is cool at this point, and the only way of saving them would be to retcon this entire expansion as some stupid Old God dream.