My vote was "Varied". Just cause mostly that people love using them, but hate it when it gets used on them. Since all of my opinions on things are mutual. All I can say, is if it pisses you off when someone uses it on you, then why not use it on them? If your plea is "Cause they are unfair!". Then a perfect rebutal to that is "it's only unfair cause they are using them and your not. If you use them too then the tables are again equal". Then also the fact of dodging/avoiding them are still in play. Then the fact that the counter's are there, if you don't want to put in the skill of understanding your opponents weaknesses into your ability to fight then you deserve to die. I just shoot pot user's from far distances with a bow. I have yet to get hit by one, so it seems to be working.
Question: Could they be disarmed? If they can then that makes them even more balanced.
Other Counters:
1. Invisibility potions. Gotta get close, can you take down the opponent fast enough if you just got close enough? Go ahead.
2. If disarm can take a potion, take theirs and use them on them. Less potions for them, more destruction for you.
3. Bows, it's easier to shoot a bow from afar then throw a potions far. IMO potions are only easy to aim from close-mid range, while experienced bow users have a much easier time shooting medium-far range.4
4. Wolves apparently. Raise tame high enough, and your wolves get healed by them. Go hide some where's behind cover, and wait for the blood curdling screams of the opponent.
5. Use the potions yourself!