Late to this but FWIW, I have a DC at William Tyndale, another joining nursery class (hopefully) in September. It seems pretty good, though I don't really have anything to compare it with - though sounds like maybe you're not in the catchment area. Friends with kids at Canonbury are also happy with it, minus a few minor quibbles (which, to be fair, I think every parent has).
Would second puppy08's comment re Rotherfield, which has great v committed teachers and has shot up the league table recently (despite not, traditionally, having had a great rep).
Have heard good things about Hanover too.
Laycock tends to be at the bottom of the league but I know someone (herself a teacher) who has been really happy with it.
Thornhill v popular and oversubscribed.
St Mary's - traditionally not v highly regarded (not quite sure why) but said to to be on the up
No knowledge of Drayton Park at all I'm afraid
New North - has great facilities but again for some reason doesn't seem to be terribly highly regarded. N.B. this is all hearsay based on people I know round here and their friends. I only have personal experience of WT and Canonbury (DD1 went to nursery class there), and beyond that have only looked around Thornhill and Rotherfield.