Orga vs. Biollante - Who Would Win?

orga 

if he gets in the vines he can stun biollante with that green ball or just shoot his beam or just smack the vines with his strenght and if he gets up close he culd just rip her apart like a weed orga might have a thought time with the acid spray and biollantes mouth but i think orga

Biollante would annihilate Orga. Even if he has more mobility and a healing factor biollante still comes out on top. 

First her vines can pierce right through him as they did Godzilla, can't heal when something is inside blocking the cells from recovering. Then each of the vines that has heads also has the acid spit so multiple shots from every angle. Biollante heals just as well, is unkillable for as long as she wants to keep coming back, and Orga completely relies on how much of Godzilla he absorbed. Seeing as Biollante took on the real thing and did very well I doubt a weaker imitation could take her out.

Lets say Heisei Godzilla and Millennium Godzilla are the same size... Biollante would definatly win. Even though Orga can manipulate powers, it would be extremely hard to use Biollante's own powers against her. Biollante might not have as much mobitily and speed as Orga, but she would be able to hold Orga down with her tentacles, blind him with her sap, bite his head off and pull him underneath the ground. Yeah, it would be brutal... but this doesn't mean Biollante would win untouched, she would win with fatal wounds.

Biollante. Orga never looked like a powerful kaiju.