Any of these 5*s worth investing in?

I’d say your list included some niche champs, wether to invest or not is highly depending on your preference. GP, Falcon, Carnage, Mr. S, Ultron, Nebula all have niches in particular fight. If you can utilise them the most, all are pretty decent champs.

Duke_Silver

Super unpopular opinion:
Gwenpool>Falcon

You have my full support

Thicco_Mode

Gwenpool, falcon, and carnage are all great, and id do it in that order

Ben_15455

Gwen pool falcon and carnage

Screaminghawk

Nebula for robots and immunity.

Drake2078

Are you dead set on upgrading someone from your list?
If not I'd wait for a better champion to invest your resources on.

unknown

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Mr_Platypus

I took GP to 4/55 over a year ago and I’ve still not used her for anything significant.
Falcon on the other hand has been used for 7.1 exploration multiple times and he’s only been at that rank for a few weeks.

unknown

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DannyB01

Wish I could have voted for Gwenpool too, I love her. But Falcon is better.

Moot4Life

https://youtu.be/aLvo9VAwyKg

I'm sry to say but falcon has waayyyy more utility then gwenpool now... I'm just gonna leave this here...

lol why do all the falcon fans showcase the same mixmaster korg everytime... i always see that comparison as well

BsuGuy

i will leave this here

Apparently I've been sleeping on Falcon since his buff