Best Queen song with Brian or Roger on lead vocals?

I'd go with...
'Sail Away Sweet Sister'.

A close one would have to be the B-Side from 'The Miracle' sessions...
'Hijack My Heart'

I will second the nomination of "Sail Away Sweet Sister" and I will put forth "Tenement Funster".

Tenement Funster, '39, I'm In Love With My Car, Sail Away Sweet Sister are my favourites.

I'll probably love the demo of Ride the Wild Wind with RT on vocals too :-)

I'll rather go for "All Dead, All Dead" but agree with "Tenement Funster" ;)

Leaving Home ain't Easy - Brian
Loser in the End - Roger

39 by Brian.
i'm in love with my car & sail away sweet sister .

Leaving Home ain't easy, and Sail away sweet sister :)

Sail Away Sweet Sister- Brian
Fight From The Inside- Roger

fight from the inside, loser in the end, 39 and Tenement funster

Rog - Drowse, I'm in love with my car
Brian - All dead all dead, Some day one day

Roger- Drowse Brian- Sail Away Sweet Sister
But both their News of the World songs rate very highly here. :)

But who wins the Battle of the B-sides: (not counting A Human Body)
Lost Opportunity vs. Hijack My Heart.
I go with Lost Opportunity, I always found Hijack My Heart to be a bit too cheesy, although I know many Queen fans adore it!

Radio GA-GA

Sail Away Sweet Sister, '39

I'm In Love With My Car, Drowse

'39, Long Away, Leaving Home Ain't Easy - Brian
Hijack My Heart - Roger

And I love both in No One But You if that counts but I suppose it doesn't so see above.

Oh I would have to say Leaving Home Ain't Easy would be my favorite Brian song, but Rogers is a lot harder to decide,If I had to say it in a rush I would have to go with Tenenment Funster, but then again Drowse is great too.. and lets not forget Fun It.. ok.. some may want to forget it but I like it..