Which 5* to upgrade?

doubleslash404

Became uncollected a week ago. Pulled 6* Red guardian 4 days back.
Following is the list of all 5* and 6* champs I have, and I am confused with which champ to upgrade.

Currently I use
4* doom and NF and Spidey Stealth/Corvus/AA 5* Massacre(80% i use him) or Namor or IMIW, 6* Red Guardian

I am learning to maintain my combo with aegon. Like almost everytime I loose my combo when enemy is about 15-20% just to finish fight earlier.

Also, I am just 1 skill t4cc away. So all options are open.

TheBair123

R4 Aegon

if you can get aegons sig up and play him well, you can really just let him carry you to act 6 completion

DawsMan

R4 Aegon

Aegon will serve you terrifically well in 5.3, even when you have the weakness on you. Great for act six, and if you want to I bet you could save some resources and do LOL for some cats, five star shards, and awakening gems.

Crimm85

R4 IMIW

I think you should go with IMIW. He manages so much difficult fights overall. Bit tanky, lifesaver while awakened. Unblockable sp1 etc.

Even if aegon can help you with a lot more content in future, its about what you need now. And the first fights with him are just a pita, always...

Dont know sassy, but if youre in love with him, he or luke cage might be another option for you.

Cheers