I think the reason for the English not wanting devolution is that fact that they see British as being English.
To illustrate this mindset, all we have to look at is national institutions.
We have the FA in England and the SFA in Scotland. We have the Labour Party and the Scottish labour party. We have the TUC and the STUC, BBC and BBC Scotland. I could go on indefinately but (apart from Folk Music) I don't see many "English" bodies.
I personally would like to see both Scots and English have fiscal and legislative autonomy and we would have only ourselves to blame (or praise) for our respective welfares.
I also think it would make us better neighbours rather than always sniping at each other.