Banshee... in my opinion it's the one reason NOD edges out GDI so much. It takes down the heaviest vehicles, can easily sack a harvey mid-match, takes down other air, gets those MLRS/Gigas.
Talon can't match the Banshee 1v1 - you rarely need more anti-infantry and are really only good for MG's right now. Orca is slow, and is a target. Mohawk is better - but still limited.
Jade's missiles is also a nice trick if you can use it right - GDI doesn't have the like other then a very expensive Ion blast.
Kind of goes without saying JJT's are pretty damn good tho - not so much for the rush - that's long been played out - but as the best Infantry response to vehicles - they'll manhandle tanks, bikes/pitbulls, titans/rockworms, etc etc. MGs and, I guess, Snipers are the only 2 space infantry in the game and GDI has both.
Giga mostly out does MLRS in most circumstances - but that MLRS can shoot from behind objects and that ain't no joke.