This alternative fellowship looks quite entertaining: Lobelia and Tom Bombadil indeed! And Uglúk!

Now we know Saruman had the tongue to speak people over to this and that but managing to convince Elrond's council that taking Uglúk in the fellowship is a great idea must be listed among the ultimate high-points in the art of rhetoric indeed...
I kind of remember that someone asked whether s/he could be Legolas - and if I'm not wrong it was just okay if someone wished to be one from the original fellowship as well. So there was no requirement to take an alternative choice.
I liked Nerwen's idea of being the other of the brothers while McCaber would be the other one. It would add an extra dimension to the game dynamics as well as to the narrations.
And just to remind you others of my honest commitment: I will try to play differently this time - so be prepared to nonsense rhymes...