I think the gameplay is worse. So much easier than dota.
The only thing that is better with HoN is everything outside the game (login, joining, rep(?) system).
The sad thing is that its a total ripoff though.
Its not easier then dota, but your given a chance to get better since you can play with people with your own rating, means you dont have to start a game versus pro players while your a newbie.
And ofc its a total ripoff, thats the point of it isn't it?
They are improving the few stuffs outside the game plus the graphics while keeping the game as it should be.
And as far as i know you cant BD in HON.
Perhaps on the first tower towers but inside the base its not possible.