R5 captain America og or....

Hi as the title states should I r5 my 4* duped captain America og or wait for a 5* science to r3? And reasons please.
Team I'm running r3 5* cap marvel, r5 4* duped iron man, r2 5* winter soldier, alternates with no main synergies: r3 5* unstop col about to be dupped and r3 5* gambit
I know some of these are not thought of as "ideal" champions but I like them
) I'm close to being uncollected with this team so.. also winter soldier is another I'm unsure about for r3....
Team I'm running r3 5* cap marvel, r5 4* duped iron man, r2 5* winter soldier, alternates with no main synergies: r3 5* unstop col about to be dupped and r3 5* gambit
I know some of these are not thought of as "ideal" champions but I like them

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Via RNG, I duped Cap OG and suddenly realised his zero damage block ability is not dependent on opponent's buff. I was too swayed by WWII's bleed (not useful at all, when I lose champ on block damage against opponent which does not have buff).
He was the reason I managed to 100% Act 4. With the 3 T4CC and Generic awakening gem, which I used on other champs, I am now even contemplating RoL
Depending on what content you are working on, Cap may be the ticket to enter the challenge now and the rewards you obtained meanwhile will just be ready for that nice 5* champ.
OG cap got me through a lot of content at 4/40 and I need to get into act 5.
OG Cap doesn't have bleed. That's WW2 who is way better imo
I think u also know that.... Og cap have far more hitting power then ...cap ww2
Cap ww2 hits low but his bleed with l2 is amazing..
Og cap have good hitting power and base BP...and also u can chain stun on opponents when fatigue debuff is on.....
Both caps are good... U can't go wrong with anyone of them either
He’s in the basic 5 crystal
Better science options
Low damage output.
Sure that block will help you but when you move one to 5.3 you will want heavy hitters. Act 4 isn’t as hard as it was prior to nerfdate 12.0 so clearing that with him shouldn’t be the determine factor.
Edit: Synergies really don’t mean much unless it’s attack boost or a new synergy in my opinion. That’s just me tho b/c I don’t see a little added crit rate or armor being a factor that gives me the edge on beating hard content. Cap WW2 is sooo much better then you have Quake, Hulk so save those T4cc.
Thanks for the reply.
Almost to level 60 I still don't have a rank 4 science champ. Mystics counter mystics better than science do. I'd hold out for a 5*. No rush on it