Is the average damage of the main AoE runes equal?

Question

For a very long time I've heard that Avalanche and Great Fire Balls have the highest average damage.

• Is it true? If a creature is neutral to every element, my rune of choice should be either Ava or GFB? 
• Is it confirmed that Thunderstorms and Stoneshower have the lowest "base damage"?
• Is the base damage for GFB / AVA identical? Or is one slightly stronger than the other?

In my opinion, they should have all equal base damage... let's say I'm a level 200 mage with magic level 70 and my avarage damage with Avalanches is 200 (on neutral creatures), for GFB, Thunderstorms and Stoneshowers, shouldn't the average damage also be 200? 

Comments

I adjusted the question title - I hope this still correctly reflects what you had in mind

Answer 1

Thunderstorms and Stoneshowers are for lower level so basically thier damage should be lower than Avalanche or Great Fireball runes :D

But when Im using Calc from Tibiopedia.pl It shows they are equal.

 

Comments

https://guildstats.eu/character-hits

http://www.tibia-stats.com/index.php?akcja=spellDmgCalc

https://www.manjatibia.com.br/calculadora-de-dano/

All these calculators shows that GFB/AVA are stronger :|

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Well its not my program to calculate that, I just used what promoted fansite give to me. :)