StreamOfTheSky
Adventurer
Obviously you haven't seen Kullan Longbeard. Dwarf Barbarian, started with a 20 CON thanks to lucky rolls, never rolls below a 10 for HP each level...He's not optimised, just lucky at the HP rolls.
Barbarian seem more like an intentional theme choice now, instead of a power-builder's choice. To which, I'm fine with.
I haven't seen Kullan, but I have seen Sucky McCrappypants (not his real name, at least I don't think so). He was a Barbarian in a game I was in a few years back that rolled poorly on all his HD rolls. Turns out, without a reroll-generous DM to make sure your high HD actually means something, whether it makes a difference or not is completely arbitrary. Who'da thunk? Anyways...the party sorcerer went into elemental savant and eventually became an elemental, which included a slight con boost. Enough of one to put her over the barbarian for hit points. So she ended up being a better tank than the poor Barb, AND had almost full spellcasting.