Only have resources for one!!

rockykoston

I completed my 8th month playing today and finally should be able to rank 4 one of my 5 star champs. To give context, I already have a 4* duped Blade 5/50 , 4* duped AA 4/40, 4* duped Mephisto 3/30, 4* duped Hyperion 3/30, 4* duped Void 5/50. I am uncollected but completed nothing else, still stuck on RTL and haven't yet 100% any Uncollected EQ -

Since I have resources for only 1, which one should it be (Thanks for your suggestion) -