Queens of the Stone Age - Why they could headline Reading and Leeds: Their sixth album Like Clockwork was met with critical acclaim last year, and QOTSA are firm Reading and Leeds favourites.
Queens of the Stone Age - Why they couldn't headline Reading and Leeds: They haven't announced many festivals this year, and it's possible their recent UK arena tour was the band's last visit here before touring elsewhere then heading back to the studio.
Slipknot - Why they could headline Reading and Leeds: They've confirmed that they're working on new material by posting an Instagram picture of them in the studio with the hashtag "#slipknot2014." How can anyone say Slipknot are no longer relevant? They use Instagram! Slipknot's live shows are renowned for their power, energy and crowd-riling ability.
Slipknot - Why they couldn't headling Reading and Leeds: The band have had a turbulent time since their split from drummer Joey Jordison at the end of last year, and have had to address rumours that they're falling apart.
Foals - Why they could headline Reading and Leeds: Another band that Festival boss Melvin Benn tipped as future headliners, Foals could be the fresh, relevant headliner of the three.
Foals - Why they couldn't headline Reading and Leeds: It's a bit soon isn't it? Holding one headliner back, then announcing it's Foals, would be something of an anti-climax. Plus, they're already headlining Parklife and Bestival, so it would be nothing new.
Chase & Status - Why they could headline Reading and Leeds: Festival boss Melvin Benn said "Chase & Status clearly are capable of headling Reading and Leeds Festivals. There's no doubt about that."
Chase & Status - Why they couldn't headline Reading and Leeds: He then added "Another new album, a couple more years..." neither of which has happened yet. They were also forced to stop their set several times last year after many fans got crushed against the barrier... Imagine the carnage if they were headlining.
Blur - Why they could headline Reading and Leeds: Rumours have been rife that Blur are set to release a new album since the band's reunion in 2008, and they teased us with two new tracks back in July 2012. What better way to preview a whole new release than with a festival headline set?
Blur - Why they couldn't headline Reading and Leeds: Damon Albarn is, quite frankly, far too busy and important now he's launched his solo career. He's even headlining Latitude, and surely the last thing he'd want to do is steal his own thunder.
Black Sabbath - Why they could headline Reading and Leeds: Last year the rumour mill went into overdrive after it was suggested that Arctic Monkeys and Black Sabbath would be headlining this year's festival. Since the former turned out to be true, it seems perfectly plausible that the latter could be as well.
Black Sabbath - Why they couldn't headline Reading and Leeds: Booking Blink 182 and Black Sabbath might not bring in the range of fans, not to mention publicity, that a booking like Eminem did last year.
Kanye West - Why he could headline Reading and Leeds: His most recent album Yeezus topped many an album of the year chart, plus he's got inevitable crowd pleasers 'Gold Digger' and 'N**as in Paris' in his backpocket. It would certainly be a brave choice.
Kanye West - Why he couldn't headline Reading and Leeds: Public opinion is incredibly mixed when it comes to the rapper, not helped by his frequent displays of laughable arrogance. Booking West would probably be more controversial than Jay Z at Glasto, and he'll probably be better received at Wireless anyway.
Frank Turner - Why he could headline Reading and Leeds: Well, he told us he wanted to. "There you go, I've said it. I'd love to. I just want to play to as many people as possible but it's reached a point now where I'm curious."
Frank Turner - Why he couldn't headline Reading and Leeds: Listen, we'd all LIKE to headline Reading and Leeds. The fact is, Turner's probably not a big enough name to pull in the crowds as a headliner. Maybe a few years down the road...
Jay-Z - Why he could headline Reading and Leeds: Iconic American rock band - check. Hugely hyped British indie band - check. Massive hip hop solo artist... It would round the trio off nicely wouldn't it?
Jay-Z - Why he couldn't headline Reading and Leeds: He was a controversial choice to headline Glastonbury in 2008, and for the first time in 15 years there were 3,000 tickets remaining the day before the festival began. Eminem managed to win over the crowds last year, but is Jay-Z one step too far for a rock festival?