Would obviously love to see Andy Murray have a successful tournament but it's a big ask and even his first round match looks tough. I'd also like to see Cameron Norrie do well.
Be good if Nadal could win it. There seems to be an assumption that it's just a matter of time before Djokovic finally eclipses Nadal and Federer but if Nadal were to get to 21 Slams (and maybe even follow up at the French) it's suddenly a whole lot harder for Djokovic as he approaches his 35th birthday and a number of younger players finally looking capable of displacing the old guard.
Nadal's only won this title once though so probably a long shot at his age.