Agreed, the Beatles aren't overrated. It's not a matter of opinion. If the world were to export one single band's music-catalogue to alien civilisations it would have to be the Beatles. It's the recipe for all great pop/rock songwriting as we know it. If you don' get it you're probably not getting a ton of other things going on in your daily life.
Anyway, U2 are overrated as hell. Their only real contribution to the world is, well... not them writing and recording "Where the streets have no name". But them writing it, in order for Eddie Vedder to show up at a random Best Western in Arizona, a little tipsy and hanging with the local drunks, and performing the best version of "Where the streets have no name" ever, in karaoke: