I am a bit late to the party since I just finished the campaign recently as I had to wait for a fix to the divide by zero issue, if nothing else, Wings has a lot of imagination.
The atmospheric 2 parter was something special, the change in handling, the bright sky, the dive through opposing fleets. I think only one thing could top that and it's a common enough anime trope(Mostly Gundam as I have seen so far). A battle during re-entry.
The furball mission near the end was cool too. Every other furball mission has you fighting inside two opposing fleets, but for most part the cap ships were there as props unless you got too close, then life becomes difficult. So instead of scripting, you die if you engage the capital ships, you made it so that they weren't your mission and their presence made a visible line you shouldn't cross through the use of cannon fire.
The Prometheus frame missions were alright, but in this case WiH has you beat with their frigate mission. I know they aren't the same, one being a ultra heavy fighter and one a capital ship, but it felt like you were trying to do the same thing. Lots of firepower and you get to use it personally.
One thing I would like to see more of are assault missions, it felt a lot of the time you had to be on the defensive. A lot of reacting instead of counter-acting.
I also wouldn't mind seeing some way to re-arm since a lot of the ballistic primaries use doesn't have enough ammo like the railgun with it's 510(?) shots spread over multiple guns giving you an effective shot count less than a 100 on a 6 gun craft.
An awe inspring TC and I hope to see a VAed version in the future.