Honestly, I like both guys...
Marc is a great voice actor, who really captured Zoro's personality. Well, when he wasn't forced to spew out awful puns.
As for Chris, he has come a LONG way since 1999. He's very talented and his Zoro is similar to Kazuya Nakai's (original JP voice actor).
HellCat said:
To be honest, whilst there's no doubt FUNimation has a great pool of talent, I do have to wonder if a majority of fans wouldn't just overlook anything bad they did simply because they aren't 4Kids. Anime fans can be fickle like that. It kinda reminds how there was this whole "4Kids turned Ussop into the comic relief!"...isn't he that 80% of the time in the original anyway? I've seen alot of clips from the new dub of Ussop freaking out. So, what? It's ok now because it's not 4Kids?
It's not that simple.
Usopp may be a liar and a coward, but he knows when to grow a backbone and fight when the time comes! However, it's like 4Kids refused to believe that such a funny-looking guy could be taken seriously, so they removed many of his character-defining moments! Most noteably, the scene in the Arlong arc, where he started crying when he realized that if he didn't fight, then he'd have no right to be in Luffy's crew!
Long story short, Usopp may be comic relief, but 4Kids turned him into a ****ing joke!
Back on topic, here's a video I found on YouTube, where somebody took voice clips of Marc as Guts, from Berserk, and timed them to footage of Zoro! Check it out, it's awesome!
http://youtube.com/watch?v=qMUmWrFabGY