I think Bomer's vocals are awesome but I'm not really a fan of Criss's vocals in this song. I can understand what he's saying about making it more in a pop style. That being said, I haven't really disliked any version of this song I've heard.
When Glee first came out I was excited to hear what would be covered next. But really I had missed the point - these songs sounded bland. Most of the songs they do are just karaoke covers with production..and I definitely didn't like this version.