Pretty much every major boss in Destiny is big, slow, and takes/deals lots of damage. I get that it makes them seem more daunting/intimidating, but there's not really a ton of thought that goes into killing them. The thought going into killing them is usually dealing with outside mechanics, rather than the bosses.. What if Bungie were to put a boss in who was roughly average size and took about half of the average amount of damage to kill, but was a lot faster and required some thought to kill (ie. A shield that can only be temporarily brought down by using one player as bait and luring him to a specific area and trapping him). I think it would be pretty cool to change up the typical dynamic of "Oh look, giant thing, shoot it till it evaporates"