The barbarian sucks giant balls at low levels. It’s clunky, it’s slower than everything else due to being melee-only, fury generators don’t generate enough fury or do enough damage, on and on…
Once you hit level 50+, the barbarian starts to turn into A BARBARIAN. You’re not fury-starved anymore, you have enough HP to take hits while you round up enemies and cleave them down (I’m playing rend + maelstrom), you can blast through packs just as fast as other classes, and it’s generally a WAY better feeling class to play.
While I haven’t tried barb yet, I played druid in preseason and had similar experience to yours. I am probably in a minority, but I like slower combat overall. What’s the point of resource like mana or fury, when it’s completely full all the time? Once you starve a bit, it makes for decisions, priorities. I don’t want Diablo to be PoE flying all over the place and clearing whole screens of enemies.