Re: Why the Balrog ran away from Gandalf ????
Radagast would have recognized the threat, being Valinórean, but I doubt he would have stood even a remote chance against the Balrog. Saruman probably would have made a good stab at it, if you pardon the pun, but he was more interested in crafts -his own and those of the Enemy- than to honing his will to be able to defeat such a creature.
[size=1]Fey he seemed, or the battle-fury of his fathers ran like new fire in his veins,... even as Orome the Great in the battle of the Valar when the world was young. And then all the host of Rohan burst into song, and they sang as they slew, for the joy of battle was on them...[/size]