No potion is required and is all just personal preference.

I always have a stack of 500 each of them at all times. Sure it's rare that you use them but I like being able to get back to what I'm doing. It's mainly lvl50 content that debuffs you but if I am a caster I 100% don't want to deal with the 10s silence in Sycus or as a Melee ever deal with Paralysis. Gold Needles can cure others of petrify which helps with the 20s petrify in LotA.

Whilst these are rare things for the sake of a few inventory slots I'd rather just have them.

Hi-Potions and Max Potions are great for low level content especially when dealing with newer players who struggle healing. They can also be used when Tanking to grab add spawns without moving the boss. Like a budget Equilibrium. It's my main use for them. I highly recommend these, especially the Hi-Potions. It's a free cure 1 in low level with a measly 22s cooldown.

Finally Hyper-Potions are just a 67s heal for around 10-25% of your hp. When not using damage pots I'd run these.