Seen Fontaines D.C a number of times recently, possibly my favourite band around at the moment. Surprised not in a more prominent slot.
The JAMC/Primal Scream double header in John Peel has the potential to be rocking (Wonder if Bobby G will get on the old drums again for JAMC).
I'd say Warmduscher well worth a watch, two great albums behind them now, brilliant live.
I'll be seeking out Jarv Is, Sleaford Mods, Cate Le Bone and Avalanches on iPlayer too, in fact most of The Park stage line up looks pretty good.