I haven't heard any alternative to Trout or Cotto for May. Trout would be a good opponent and I hope it happens.
I don't understand why anyone is concerned about Alvarez having not faced an A list fighter- for me it just creates intrigue to watch him fight as he moves up in the quality of his opponents.
I'm glad there is a big name as young as Saul Alvarez, I hope we get a decade of good fights out of him.
I do agree he hasn't beaten anybody particularly dangerous, I still can't wait for his first really tough opponent. All that said I honestly didn't think that Baldomir could be KO'd using a sledge hammer, that's probably the most eye opening thing he's done imho.