Act 6 completed! Which champion to rank up for Act 7 and other future contents?

I'll not be able to rank 3 any 6* right now as I'm not level 60 yet. Though I've got the resources for my Ghost.
But till then which 5*/6* should I rank up for clearing other contents. I'm having enough resources to take any 5* from rank 1 to 5. So feel free to choose from all the options. I'm not making this a poll as there are way too many options.
My roster-

Note - If you're going to say Quake then please mention other options too as I don't like her playstyle very much so I might not rank her up at the moment.

Comments

Sazed

Can't go wrong with Venom. Right now he's my favorite champion and it helps that he's so useful. Also KIllmonger is a fun rankup if you're into that. Congrats on beating Act 6!

mort_07

Odin Rank 5 and Not Hela?

Peni Rank 5 for what?

Speed Rank up from Void to Rank 5 and dup 200 and BW CV

(for mystic variant).

IvarTheBoneless

5 stars: venom, void, bwcv
6 stars: corvus, bwdo, doc oc and maybe vision

Mysterio

Mysterio!

The_HoTU

I forgot to mention I don't run suicides @mort_07 @IvarTheBoneless that's why I haven't ranked up bwcv yet.

DawsMan

You've got a huge roster already, I feel like act 7 should be pretty easy for you. None really stand out atm, lots of pretty good champs. See how far you can get without rank ups then see what type of utility you need then rank up from there.

unknown

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13579rebel_

Spidey 2099