Hammock pros- flexible to set up because you don't need level ground. Gets you up off the ground and away from insects and small critters.

Hammock cons- air underneath you so lose heat in cool temps unless you work insulation into your setup. Curved sleeping position with little ability to change much.
Requires trees or posts to tie off to. Precludes lots of real estate.

Some people love them. I've not used one.

Last time I went camping the guys who used tents were washed out big time by a prairie thunderstorm that was intense enough to spawn tornadoes. I was snug and dry in the back of my Jeep because I'd figured out how to fit myself and my stuff in after tents had proven troublesome when on 4WD trips. (I waited out a 3 day snowstorm at 11,000' in my Jeep one year.)

But if I'm without my Jeep, I'll be backpacking and using a tent. Yes, you can't see much but I've ridden out some pretty good storms in tents and been really glad to not be tarp-camping.
(Colorado mountains)

Super lightweight and low-vis would have you rolled up in a poncho sleeping in a bush. Probably takes a lot of getting-used-to.