Falcon or warlock to R5

Gazthehillbilly012

I have just got past uncollected in last couple days and I am now in a position to rank 5 a 5* for the first time, I am torn between warlock (unduped) or falcon (duped with 108 stones). I use both regularly and enjoy both, I’m not looking to progress through 5.3.1 yet and will focus on building resources elsewhere.
Ps: I would need to wait for 4 more t4skill catalysts to rank falcon

Who would make most sense to level up and why?
This is my top end of my roster:

Gazthehillbilly012

I have now traded t4 catalysts to get the skills and I’m still one short for falcon but have all the resource for falcon, looking mainly at the EQ and SQ would appreciate any feedback

Kill_Grey

I would go Falcon. I prefer him much more to Warlock.

Rahultripathi

i would go for warlock not only because of his immunities but also because he is a very versatile champ compared to falcon.