I'm not a big fan of the "costume changes" Mostly because, well, he barely has a change of costume. It's a lot like the change of Spiderman's costume over the years- it's remained the same, but yet still changed drastically with different artists. Sure there's been, what, 2 or 3 official event costume "changes" but the first one was simply giving him a bigger right boot and gauntlet, and the one that happened in 150 was just making him slightly more corpse looking. As 150 went on and now we're again at a fairly new direction, he looks even more like a zombie- the design is pretty much the same though. And to be honest, if I had to pick between the rotting, more mangled version we have now and the original sleeker superhero looking thing, well, I like the original.
This is about as different as he looks, where he was again slightly redesigned for the current Apocalypse new world deal storyline going on:
This is basically just Spawn given a mouth.. it's essentially an organic, zombie version of the Necro cop design.. so it's not like it's anything new or original:
vs the more traditional earliar designs seen in the thread before.
My favorite images of the character have always been ones like this, where he is largely in shadows, so these minimal details won't really matter either way: