(hope that works....)
Apart from The Wollny one I mention above I'm mostly still choosing, although I did also get a good seat for a Saturday afternoon Festival Hall orchestral thing with Laura Jurd's Dinosaur.
I usually go for one or two of the all-afternoon freebie events at the Barbican and South Bank, usually some interesting stuff happens at those. Also think some of the events at iklectik look decent.
I prefer not to commit to too much too far in advance as more shows tend to be announced nearer the time, and the wider circle of Polar Bear/ MYD crew & pals don't seem to have much going on, which I hope will change.