I like almost all of these games, rock themes are irresistable.
The only one I never really connected with was Elvis. Not sure why I just didn't "get it."
Stones I like as I'm a big Stones fan but I can see why it's not exactly loved around here. You rarely see it for sale which I think is a combo of low production and most of them ending up bolted down into Stones fans' basements. It's main problem is the rules which I would say lack polish and variety.
Maiden is probably the best of the lot, honorable mention to Metallica.
Aerosmith and Kiss are both pretty awesome games but in a pinch I'd probably go with Aero as KISS is a pain in the ass with the Gene head constantly spitting the ball straight down the middle. When you have to "correct" a flaw like that with software (dumb ball save) you know the design is a mess. Doesn't help you during multiball either as balls just sail down the middle. Aero looks better too.
Beatles is a ton of fun, I have a feeling one day that's going to be a pretty high value game.
AC/DC and Zep are solid games. The Zep pro kind of blows but the Premium is great with the spinner and the upper flipper ramp.
The Rock pins - besides Zep - have a great record having awesome Pro versions so hard to go wrong.
Running out of great bands to do I would be very excited by a Sabbath, Floyd, or Judas Priest theme (the last being the least likely I'd say). Rumors are strong for Rush but that band doesn't do anything for me beyond WOrking Man.