Balinda is quite much harder to kill than galvangar cause of gate position and the way to the entrance attracts much more attention than alliance entering galvangar's keep.
Iceblood tower is much more useful as it defends the main chokepoint of the horde, while stonehearth bunker has little use., stonehearth bunker is somewhat skippable (but its never skipped anyway)
Shgy/Ibgy defenses seem equal, both have an op mine layer and various lieutenants
Icewing bunker and tower point seem equal in value, both useful.
Horde can tame wolves much easier than alliance can tame rams, but in return alliance can use the cavalry to defend their base while horde can't.
Icelord spawns weaker by forest lord, but if he is fed by alliance players dying, he becomes stronger instead.
Finally both dun baldar bunkers are 3-4 times more useful than the frostwolf towers, plus horde gets to pull random quartermasters with a huge health pull that keep respawning while alliance doesn't have to face anything like that, and if they do, its less quartermasters + the horde towers don't even support them.