Hotter ticket(s) right now...Lady Gaga or One Direction or...?

Mrs. Mix has the opportunity to obtain 2 tickets to the concert of her choice. Seeing as there’s no one we’d like to see coming our way in the foreseeable future, which show do you think would fetch the most money on the open market for comparable (most likely lower bowl close to the stage) seats?

Lady Gaga
One Direction
Rhianna
Maroon 5

I’ve already looked at StubHub, TicketsNow, etc., but since some of these shows are a ways off, many sellers are still shooting the moon. One Direction doesn’t go on tour until February in Europe it seems also.

Depending on the number of teens girls and disturbing cougarsin your area, One Direction would be my guess for most likely to sell out 5 mins after they go on sale, so should have high resale demand.