Ok thinking cap on. Shepherd's Bush Road has Snows on the Green - modern english-type food which was quite enjoyable. Also a Cafe rouge down there - you probably know what you are getting there.
Askew Road - excellent North African - it's a (small) cafe in the day but very nicely decorated and gorgeous tangines etc in the evening. Couple who run it are lovely also. Tapas bar/Spanish restaurant on Askew Road is meant to be quite good but I've never been.
There are some Lebanese restaurants on the Uxbridge Road but again I haven't been (comes with having kids I guess - don't get to go out much).
The Brackenbury in Brackenbury Village (near enough to W12 although I think it has a W6 postcode I think) is meant to be very reputable but again I've not been and when we did look at the menu (modern British) it was relatively expensive.
The Balzac is still there but I've never been.
The Crown and Sceptre is a good gastro-pub - usual posh pub grub.
Can you tell I like my food . Must go pick up my dd now but if I think of any more will let you know.