drasked
Grandmaster
Heal potions have a cooldown whereas purple ones have none/time to throw them. Also they heal for less than what you are being hit for.
Not taking in to account any skills:
Healpot can heal up to 30 hp every 10 sec.
Explo pot can deal up to 15 dmg every 5~ sec.
If you bring in alchemy i think it's more fair to compare it to bandages.
Bandages can heal up to 40~ dmg every 9~ sec
Explo pots deal up to 25 dmg every 5~ sec.
Numbers might be slightly off but its pretty close imo.
Combine bandages and pots together and you are practically immortal as long as you can run.