Pandora anti-patterns disrespect its users and ruin its experience. Shame on them…
If I was advertising on Pandora I would be very concerned that the design of their controls, the placement of those controls and the presentation of ads on their platform were designed to cost me (as an advertiser MUCH more than they should. Pandora is using anti-patterns to drive unintended interactions. Eventually this will backfire, but in the meantime we as customers, are forced to deal with very poor user experience.
Devil in the details. Label placements matter.
Which form design is better, top label or left label? It depends on what you want to achieve. For an enterprise payroll application speed, ease of use and the ability to localize the user-interface later won out.