Figured I'd do this in a slightly more interesting way (to me) than a list. The "best guitar in the world" has a solid color paint job over a lightweight body in any classic shape (strat, tele, LP, SG, etc.) with low-to-moderate output pickups and no trem. It has lightweight, nickel-finished hardware. It has a decently thick rounded neck profile with a slightly narrow nut and a moderately curved fretboard with stainless frets. It has simple, easy-to-reach controls. The "worst guitar in the world" is a natural or burst finish over a heavy body with a figured maple top in a chunky or uncomfortable shape. It has a wide, flat neck with fancy abalone inlays, high output pickups, a gold locking trem, any a ton of knobs and switches for things like coil splits and pickup phase.