also, from the Jack White "Essential Works" section in the guitar forum:
The Defining Three:
"Catch Hell Blues”.
This is exactly the track i would tell people to listen to for Jack White's musical mission-statement: repeated phrases, single-note attacks (a la Neil Young), sloppy delta blues licks (complete with missed notes), loud distorted riffs that weave in and out (and have several variations throughout), shifting levels/tempos, etc. he is not everyone's cup of tea, but you'll probably know if he's for you or not by listening to this.
"Ball and Biscuit"
perhaps the ultimate and most popular defense for most Jack White fans as an example of his talent as a guitarist, mainly because it seems basically designed as a jam for him to improv (i wouldn't be surprised if he improvised it in the studio).the thing that draws me in is the riff and the smaller licks that fill the gaps. the studio version doesn't do justice to his live versions, which you can find all over youtube.
"Seven Nation Army"
the riff that single-handedly made Jack White a guitar-icon and simultaneously made him the most despised guitarist in the world It's the most recognizable riff of the 00s, a throwback to Page/Blackmore riffs, and probably the most overplayed song among beginning guitarists next to "Smoke on the Water" since it was released.