Like you say there has been many great ballads, and it is hard to find just one. If I had to choose one then it would probably be Bed of Roses. The think the lyrics are exceptional for a love song. It seems to be pretty much about a guy being so far away from his girl like when the band is on tour, and wanting to be with her so bad that he's becoming a wreck. I love Richie's "weaping" guitar effects in the intro and solo. The piano also plays a significant part, which I feel gives the song a good feel to it. Great ballad.