Okay now that i thought about it a bit more, i'd say it all depends on the situation...
What could gamabunta have done to help the 3rd on that roof ?

now

Watch this at your own risk

***************<span style='font-size:21pt;line-height:100%'>kinda big SPOILER</span>********************

<span style='color:#D6DBE0'>Ok now if you take gamabunta against manda(sp?) it would have been dead meat if tsunade wasn&#39;t there with her own summon(don&#39;t remember the name)...
Sarutobi&#39;s summon is really deadly when well used, he could have killed orochimaru that way if he was in his prime...
So i&#39;d say it all depends on the situation&#33;

</span>
************************************************** ****************