Nostalgia tempts me to get the full thing - Battle Angle Alita was one of the first manga series I ever read. However, my manga reading tastes have changed significantly since then, and I'm not actually sure I'd enjoy the series now. That leaves the lower tiers. I remember reading The Ghost in the Shell a while back and disliking the amount of text Masamune wanted readers to wade through. The first volume of Inuyashiki was unpleasant and, judging by reviews, it only gets worse from there. The first volume of The Seven Deadly Sins was generic fantasy and an enormous amount of boob grabbing.
That leaves the first tier, with Ajin: Demi-Human. I've seen a good chunk of the anime, and as long as it follows the manga fairly closely, I'd say Ajin would probably work reasonably well for me.
At least, Optimus Prime and a small group of Autobots do. I wasn't a big fan at first read, but I'm coming to appreciate just how brilliant a move this was: the focus stays on the Cybertronians, not the humans, and even then? Thundercracker adopting a dog and becoming the worst screenwriter ever is just hilarious.
Somehow, even when he's mangling screenplays and writing in general, Thundercracker just wins me over. Like completely over.
Loved this, and read it early on in the month, right before the Hugo packet hit.