I'm giving this to Herlea, mostly because of the superiority of his instrument, but It was actually closer than I expected. Merrill sounds past his best, so he went out first. However Enkhbat impressed me greatly. He sings with real feeling and, though his legato line isn't ideally smooth, he makes something meaningful out of the aria. Herlea isn't faultless (I'm sure I noted a couple of aspirates creeping in) but his voice is magnificent and interpretively he doesn't do anything wrong, but I'd like to acknowledge a modern singer who sounds like one to look out for if he comes this way.