Corrupter buffs/debuffs are 75% of the strength of defender buffs/debuffs.
Dead Calm's Defender Manifesto
And defender blasts are 80% of corrupters I think. Corrupters are 75% of blasters, defenders are 60% afaik.
dont matter what the def has 
still suxx in camparison to all (secondary wise and some primary)
exclu. rad it seems
my emp went toe to toe against a rad/rad corr and neither could kill each other...
quick question anyone know if there's any difference in strength between corruptor buffs/debuffs and defenders?
i know there is with controllers (about 25% i think) but haven't seen anything about corruptors