Moleculeman vs DR.DOOM(firestorms powers)

??

Well, Firestorm's powers are good, but couldn't even hold a candle to Molecule Man's powers. But, Doom's wielding them...

It doens't matter the Molecule man wins but it would be a good fight

Doom thought he killed MM once

I serious doubt that Doom could posed a threat to Owen with his regular powers. Owen is just way out of his leauge

firestorm has greter control over molecules because his powers effect living matter and molecules but to use firestorms powers you have to undertand the compounds in with he wishes to control.And firestorm is no rocket scientist so he is only able to use a small fraction of his powers. so if you give his powers to probable the smartest chracter in marvel and he'd make godes look like ants

Weakness:
Except for Serial Immortality, none of his powers can affect living targets.

is this truth about MM?

no...owen reece subconsciously limited himself that way when he first appeared...his powers have expanded so much now that neither the Beyonder or Kubik would be a match for him.
http://beyonder.chez.tiscali.fr/beyonder.html