I'd say its Lindsay, Kim and Maria in that order.
I feel that Kim will win a slam this year, and she is a demon on carpet, so there is no doubt that she has major points to gain there. She can gain a lot of points, even before Wimbledon rolls around.
As for the injury factor, she is coming off an injury, but with a managed schedule, she'll do fine.
On the other hand, it could be a factor for anyone of the top players. Maria could have a injury even before she hits the first ball at wimbledon, same goes for Lindsay.
Take care of your character. Reputation will sort itself.