Aircraft aren't amazing. Other then flying, they can't do much damage on the battlefield. Now, I know everyone's so excited about the new patch, but so many people are overlooking the fact that aircraft aren't unstoppable killing machines.
In fact, on Walls, team GDI was buying orcas like madmen. I wisely saved up and bought a Raveshaw, which takes down an orca in 3 (yes, 3) shots. I succeeded where 5 apaches couldn't. So that's point one: aircraft aren't that strong against even an infantry class.

I also noticed no one is buying tanks anymore. Common people! They're the basic part of C&C! All I see is orcas, apaches, orcas, apaches, orcas, apaches, and yes, of course, orcas and apaches. Tanks happen to be great in assaulting the enemy base. So that's point two: Aircraft aren't the only things in your buy menu.

Since this aircraft boom, I've never seen any good tactics that were in common use before. Everyone's just too happy with their flying coffins to even think that they could win any other way. So that's point three: The aircraft caused the death of tactics.

Now, I could be wrong. Aircraft could just be a trend. And I'm not saying they aren't good. But just remember, there are tons of other things you can do in Renegade.