Ithas far more(lol) reach in practice then all the other lances, it is the ultimate cav tool for extreme safeplay and outreaching. Imo, it is not in any way worse then the lighter lances, probably even better but thats up to your personal preferences. And that is where these weapons are different fom eachother; mostly the speed. The lower tierlqnces allow for more stabs after eachother, whilst heavy lance has a slow stab. (also means it needs btter timing to hit the sweetspot, bc slow thrust)
Dqmage is way higher aswell afaik with the heavy lance, with unloomed Lance Isometimes need to hit something thre times before it dies, though i'm an 16/24(lvl31) arabian warhorse lancer, so my speed bonus is less.
Tl;dr: all lances have a different playstyle that comes with them, conparing them with eachother isnt relevant imo.
Btw: the reason I dont use Hlance is because I like to have quick stabs that go with close quarter cavving, h lance is the ultimate gay tool aswell, just playing it safe.