I actually love Mikes part, too. I mean Chester is freaking awesome, but I don't think its right to say, that Mike would ruin the song. Not at least because I don't see his parts as "singing" at all, I think its more a mixture of rapping and singing, not comparable to what Chester does. I think the style is really absolutely not what Linkin Park sounded until now, but I love it. The style (not the song itself) reminds me a bit of Across the line.