I voted for Slash
Now, to be honest the album didnt QUITE live up to my expectations, I was really hoping for the greatest album ever haha.
Why did I vote for it? Well...Slash showed on this album his versatility as a guitarist. We all know the style that Slash played in GnR and Velvet Revolver, and even in the Snakepit. It was awesome, some of the greatest solo's of all time but you always knew it was Slash playing. He has his own distinctive style, be it the speed he played or the sound made by his axe.
On "Slash", he plays in so many different styles, each of which suits the guest vocalist. For example, on the one with Lemmy, it sounds like it could be a regular Motorhead song, as Slash captures the style of guitaring Lemmy uses perfectly.
Same with his duet with Avenged Sevenfolds M Shadows, where Slash plays a much faster style synonomous with A7X, again complementing Shadows vocals excellently.
Slash has a fucking awesome duet with Fergie from the Black Eyed Peas, which reminds me of the famous Run DMC and Aerosmith song "Walk This Way". I HATE Black Eyed Peas, and groaned when I saw Fergie was on this album, but she fucking kills it. Great rock voice,
The song with Kid Rock, "I Hold On" is great, as is the opening track "Ghost" which feaures Ian Astbury from The Cult. Also, Ozzy is brilliant on "Crucify The Dead", where Slash plays in a much slower style. Pretty much every song on the album is great, and really suit the guest vocalists style.
For one album to sound as good as this with such a variety of guitaring, featuring guest singers including:
Ian Astbury
Ozzy Osbourne
Fergie
Myles Kennedy (legend)
Iggy Pop
Kid Rock
Lemmy
M Shadows
plus Dave Grohl, Izzy Stradlin means its gotta be up there with the best. Overall, its not perfect...but its bloody good!