You can't really say that Snakzz... better in what sense? More fun, that depends on you. Better at farming? That depends on build etc. Each class has their ups and down, there are no flat out "Better" classes. You just need to give Crusader a go and see how it plays for you.
I had a similar question. I think most of the game I played Barb (start of D3) and Monk (end of D3), also played the DH a bit at the start and the WD near the end.
Right now the monk is still a fun class imo, but at the same time it feels as if I would like to move to something new. My only complaint about barbs and monks (if we focus on the melee classes) is that they have a bit to much passive skills (warcry's & mantra) and you're actually only really using 1 or 2 skills at best during combat.
So my question : Is the crusader a bit more active compared to the monk and Barb during combat ? Using a lot of different skills, each time depending on the sitution or are does he have a lot of passive party buffs as well ?
I've heard mixed reactions in the forums regarding the Crusaders toughness. They don't get the 30% reduction because they are considered a mid-range class. Personally, I wish they had made it a really tanky class in design. All that armor screams come hit me a lot. I know that the shield will make up for some of it, but I was really, really hoping I could make a tank that just stood there and laughed while Elites tried to smack me around.