Question about the down scale mechanic
When you are downscaled it downscales your armor and weapons too. But not to the same amount.
Basically a level 80 with full level 80 exotics downscaled to 30 will have more stats than a level 80 in full level 80 rares downscaled to 30. And both of them would have more stats than a level 30 character. As far as I can tell gear is also not downscaled as much, such that a level 80 in full level 80 rares downscaled to 30 will still have more stats than a level 30 in level 30 rares.
it’s also important to note that certain stat combinations do not exist at low levels. For example, the bezerker set (power/prec/crit damage) exists at low levels, but is often missing the crit damage component (making it simply power/prec) or sometimes missing both prec and crit damage. Even downscaled, a level 80 would obviously have more of these stats than the lower level, as the lower level doesnt have them at all!
Likewise, upscaled characters will have far less stats than a typical level 80. This can be seen quite clearly in WvW where a level 80 character in full exotics will seem practically invincible to players who are not also fairly high level.