Alonso is really the only one the comes to mind, really, and that was before FSG. McManaman maybe, but that was years ago. Owen was average at Madrid and crocked everywhere else. Masch has been ok at Barca, but he's been a CB, not a midfielder, and always under scrutiny. Fowler was ok at Leeds, but nowhere near where he was for us. Sami only had a year or so at Leverkusen before he became manager. Pepe had half a season at Napoli when he was really good, but he declined, and now he's on the Bayern bench.
Suarez will probably be fine at Barca, but I doubt he'll be a Ballon Candidate, and he surely would have been, had he worn a muzzle and stayed with us.