I guess this one doesn't require much explanation other than, "Whose voice would make you jump off a cliff even if they were singing "Yesterday."
Geddy Lee- His voice is so distinctive that I distinctively can't stand it.
The other dude in the Goo Goo Dolls- Look: your music is bad enough without letting the guy who has no vocal quality sing lead vocals on two songs per album. If it's a clause in his contract, change the contract. Baseball players have went on strike for much less, Mr Rzeznik.
Boyz II Men- There are two parts to a Boyz II Men song. One is the part where they have to show us how good they are by singing at full strength all the way through the song. It's like hanging out with a body builder who flexes 100% of the time: we don't need to see your biceps through your dress shirt.
Then there's the part of the song just after the second chorus where they "take it down a notch" by speaking some romantic garbly-goo over a slow drum beat. The only good thing to come out of their music is this: If you want to have some fun, set up a karaoke machine, get totally loaded and start free-versing (in your worst Barry White knock-off voice) the first thing that comes to your mind over a Boyz II Men love song. Something like, "Baby, I'd love to cook up some french fries...get some salt and ketchup all over them....and eat them off your kneecaps..."
Johnny Cash's Recordings With Rick Rubin- With the exception of one song, I would like my money back. Cash is a great story, he is a legend, but I'm not going to pretend to like something because it won an award or because Rob Sheffield of Rolling Stone gave it 5 stars. It's like the record company is asking, "Do you want to hear what Johnny Cash sounds like near death?" No, I don't. It took one listen for me to place the CD on half.com. It was so bad I'd place it on freeifyou'llpickuptheshipping.com.