I liked in the GI Joe comics when they had the sense to kill off the entire "TechnoForce 2000" team or whatever it was called.That and the plot about food poisened trapped Cobra agents like Zartan and Billy,Cobra Commanders son,and how Firefly escaped this somehow to come claim revenge.GI Joe comics by marvel were overall pretty good for back then,for Marvel anyway.
I liked the original black and white Ninja Turtles more.Violent and with great stories and artwork.Eastman and Laird were great,up untill they started to burn out.I also have the 4 trade books that were color reprints of the black and whites by First Publishing.
Yet again wonderful releases.
Some other great comics are the First Publishing releases of Lone Wolf and Cub.Frank Miller usually did the cover art,and a opening talk about what was going on per issue.
Howard Chackins American Flag released by First Pub.
Wonderful future type comic,with silly type stories,Blade Runner esque type settings sometimes and so on.I remember it fondly.
Any Terminator or Aliens or Predator comics by Darkhorse in early 90ies.Espically if the artwork is by Chris Warner or Sam Keith.
Avoid the Terminator comics released by NOW,who did SpeedRacer comics,as Now publishing sucked.They sucked so bad that they lost the rights and DarkHorse got them instead.