Lets talk about Doran's Shield

It needs a buff. It provides very little sustain while only giving 1 HP pot. gives multiple forms of mana sutstain and gives health sustain, and comes with 2 pots, and grants scaling sustain. Also, even thou all three grant HP, the extra HP are very appreciated in mid and bot, where all-ins come down to 1 auto attack or spell, where as in top lane, not so much. An all-in in bot lane is like a common trade in top lane, and therefore the health is less potent.

Also, the damage reduction is kinda lackluster. Against enemies who poke with abilities, the 8 damage reduction isn't very much, especially in terms of %HP retained. For top laners with ranged AAs, the damage reduction is high in terms of % damage reduced, but it doesn't even begin to compensate for the sheer amount of harass ranged AA champs can produce top lane.

It is better, in every case, to either grab , , or , depending on your champions mana needs and the form of harass the enemy is producing.

There are two ways this could be fixed. 1 is to reduce the cost so that you can afford 2 HP pots instead of 1. This is the easiest way, I think, but is somewhat of a cop-out. Secondly, they could change the items stats, either having it provide more sustain, more block, or both. I would propose that melee champions receive higher stats than ranged champs when buying