The Hattie still has its single SVas to fight back with.
Not like that will ever be enough to kill anything but cruisers with though.
I think it's also psychological. The Orion is huge, and intimidating. Maybe it's not threatening for YOU as a fighter, but anything Corvette-Cruiser sized will need some new brown pants.
The Hapshetsut on the other hand looks almost friendly. Nice, gentle curves, and, from what I remember, rather weak fighter bay capacity. Not any real good camping spots, though.
Yeah, the Orion looks cooler, mostly because it's HTL'ed and the Hattie isn't

I'm pretty sure something smooth and rounded can still look intimidating.
I don't know about capacity, but launch capability wise, the Hattie wins hands down - the Hatshepsut has two fighterbays, one on either side, so it's not so easy to just spawn kill stuff.