this not really,he absorption universe is anti-universe not positive universe,i say this is before,yes,before,the AM destroy thousands of universe to strengthen his power(these universe give him power) the am actually absorption all Multiverse(Multiverse is infinitude>>>>>>>>>>>>thousands of universe)so this why this am can beat Spectre
His universal destruction is more of a conversion from positive matter universes into anti-matter which becomes a part of Qward, before travelling in time he absorbed the energy from his universe which was much more powerfull due to all the universes he destroyed in CoIE, then he absorbed the energy from the heroes that travelled back in time.
pre crisis superman strong is enough lift a universe weight,pc superman can support universal energy,SMp CAN survival big bang,pc supergirl can almost destroy COIE AM(has thousands of universe power) i mean,if big G is full power,he wins,but,if this big G is just regular level,SA superman take out him so,big G full power>PC superman>regular gala
The universe absorption happens much later, and by the time that happened PC Superman had his powers drained like everyone else, PC Superman also couldn't do squat to beings like the Spectre.
A Blue star would double Supes power in a instant.
AFAIK, no, a blue star awakens new powers, doesn't doubles his power, so far I only recall seeing that in the bizarro world story where he used HV on his pops by accident and rather than fry him he gave him Kryptonian powers.
im probably about to get stomped on for this, but narutoverse takes it. *puts on fanboy-proof vest*
I can only recomend you to see the original Dragon Ball and the 1st arcs of DBZ up to Frieza, heck skip DB and just watch Goku's fight with Frieza in Namek and just know that the power lvls in GT are way above that, if you don't think that Goku or Frieza at that part would paste the entire Narutoverse, then you can dress all the vests you want, they won't save you from yourself.
Naruto power lvls are a match to the original DB lvls, and they stop matching it in the latest parts of DB.