All of Gundam ever is anime first. The comics are adapted from the plot of the TV series and usually suffer from being mostly rewrites or flavourless truncated retellings.
There are excellent side stories and original stories if you look for that though. Like Crossbone Gundam (takes place during the original series timeline, it's about space pirates) or gag serials like Gundam Souzai or Mobile Suit Gundam-san.