Hello, sorry to jump in.
We are still undecided between Virgin or FC but probably booking today.
One of the main reasons (apart from airport closer to home through fc/thomson) is that you can pre pay to pre book your seats. I have a severe fear of flying and there is no way I will get on the plane without sitting by dh and my mum.
What we were thinking of doing is booking 5 seats with the extra legroom (which means you know where you are sitting) and then 3 seats behind (and pay the £25 extra).
Reading your thread above, it has worried me that even if we do this, it will not happen