Diep.io vs Arras.io: Which is Better?

Diep.io vs Arras.io. Which one is better out of the two? Both of these games are great in their own way, and both have accomplished things that the other has

I've been working on a diep.io successor for a while now, and I'd love some honest feedback about the game so far (link in comments) : r/Diepio

Arras.io

Diep.io - Chess Forums

Engineer, Diep.io Wiki

Arras.io

Diep(Tank), woomy-arras.io Wiki

Multidimensional Pink Triangles (diep.io x arras.io x scenexe.io crossover) : r/Diepio

Arras:Assault, Diep.io Wiki

Arras:Sentry, Diep.io Wiki, FANDOM powered by Wikia

My biggest record on Arras.io (More than my biggest record on Diep.io p-p) : r/Diep2io

ARRAS.IO EPIC UPDATE (UNIQUE NEW TANKS)