I agree, I generally have a set loadout for playing PvP which is different to what I normally use in PvE. I would love to change everything with one click rather then one item at a time

i toats agree i have a really good loadout my self just check the link above

I think a loadout profile would be great, like your different armor and weapons.

I'd prefer for armor, I have 3 loadouts I use on my hunter (changing depending on game mode) I use a gunslinger helm when super comes around, and radiant dance machines during heavy... my default no super no heavy is using spine so my tripmines actually act like tripmines >_> (you should not need a stinking exotic to get the tripmine factor out of them) similar rules may go to my titan and warlock (although thanks to armentum, titan may be excluded.... and warlock depends which class im doing, if using voidwalker, i may be inclined to swap armor and helm slots for the extra rocket)

Hide behind cover and, if you're on PS4, click the Options button and it brings up a screen where you can rearrange weapons, edit subclass settings, and change armor items. I find it's very useful for switching between weapon classes, like Scout Rifle and Hand Cannon. It also displays your character, which I find quite neat.