I'm trying to finish leveling Swann and starting Raynor. Swann was my first commander, got him to level 10 before I switched to Stukov then Dehaka.

Mostly he just lacks the power of other commanders. Moving Hercules full of tanks is cool, but finicky compared to ctrl+A on a wall of carriers or cruisers. In Dead of Night I end up using Hercules+Thors because tanks can't move fast enough to effectively clear the map.

Raynor is great, no idea why I never tried him before.