Well, I like them both. I find the moment-to-moment combat in both these games to be the best in the genre.
@kerzain, I’d suggest trying some different classes. You can level up enough to try a few skills with each of the base classes in about an hour of play or maybe two hours. Whichever skills you find the most satisfying, stick with that, and try to find a good build online for that class.
Nearly every class in Grim Dawn has some deeply satisfying skills to use. And that’s how I base my characters too. There’s skills like Word of Pain that are theoretically strong, but just aren’t satisfying to use, so I just ignore those. I’d rather kill things in satisfying ways, and Grim Dawn has a lot of skills that cater to that desire.