Complaining about poppy over jayce? Just give her the D

Not practical? considering the 425 range of her buckler attack, she'll usually not have to move more than that to pick it up -- with 345 base movement speed plus boots and W it literally takes less than 1 second to get it, and if people are willing to waste important cc (on you the tank) to stop you then all the better.

But I mean, if both had to sit completely still and take full punishment from physicaly damage, malphite could take more hits than poppy, but the fact that poppy can out right remove a champion(s) from the fight with her ult, gives her FAR higher survivability than malphite and can create instant 5v4's, also if she stuns someone with E, that is more time that she buys herself by preventing taking damage from who ever is stunned, cuz they cant auto her whatsoever (unlike an attack speed slow) and they cant cast spells.

Idk when you really think about it, if poppy removes someone from a fight, conceptually it is the same as mitigating all of that person's damage that they would be dealing, and say in a late game teamfight, that could be 20% (1/5 people) or more of a team's damage output; probably more if you remove their adc or mid laner.

So still, imo, when it comes down to it, poppy, for all intents and purposes is tankier than malphite (and that's completely disregarding the whole magic resist thing)