BY FAR THE WORST
Pedro Leon - Amazing stats so i payed 30m. Im happy to release him now hes that bad.
I had the same problem with him, except I paid a lot less than that. He had one good season though (out of about 5), and I offloaded him because he reached 30 and Aaron Lennon started to become awesome (I bought Pedro Leon to replace Lennon).
Best:
Tom Cairney (£2million)
Phil Jones( £12.5million)
Ishak Belfodil (£100million - I had cash to burn and he turned out to be incredible, he has more goals than appearences in 4 seasons)
Mahmadou Sakho ( £22 million)
Joe Hart( £18million)
Honorable mentions: Neymar, Macheda, Muller, Enyeama.
Worst:
Paulo Henrique ( £30million I think it was)
Juan Manuel Mata ( £22million - although on another save which lasted until January first season he was ok)
Karim Benzema( £30million i think, was ages ago though - couldn't hit a barn door with a banjo)
Eden Hazard ( £12.5million)
Pedro Leon