Every Rocktober, there's at least one night when a daunting myriad of music options emerges. Wednesday, Oct. 27, is one such instance of sonic saturation. No one could hit up all five of these shows, but few would want to. Here's some help deciding where to rock.

Every Rocktober, there's at least one night when a daunting myriad of music options emerges. Wednesday, Oct. 27, is one such instance of sonic saturation. No one could hit up all five of these shows, but few would want to. Here's some help deciding where to rock.

The basics

3OH!3: Boulder duo trades in club beats, auto-tuned vocals and collaborations with vapid female pop stars

GWAR: Twenty-six years of heavy metal, grotesque costumes, messy stunts and gleeful skewering of current affairs

The Soft Pack & Kurt Vile: A pair of indie rock's rising stars: L.A.'s Soft Pack blends surf-pop with garage rock; Philly's Vile trudges through psych's darkest and dirtiest alleys

The Intelligence: With an ever-changing cast of helpers, Lars Finberg puts punk through the wringer of krautrock, New Wave and retro garage; it indeed sounds very smart but also very fun.

Steve Aoki: Dim Mak Records founder spins electro house with rock aggression but club finesse

The openers

3OH!3: Down With Webster is an abominable Crazy Town knockoff, but

Hellogoodbye and Neon Hitch take pop in intriguing directions.

GWAR: Street punk stalwarts The Casualties join thrashers Mobile Deathcamp and death metal deviants Infernaeon

The Soft Pack & Kurt Vile: Purling Hiss' lo-fi power pop and raunchy psych-punk stands up to anything the headliners have to offer.

The Intelligence: Punks extraordinaire Exwhites and gnarled weird-rock specialists Guinea Worms are practically house bands at Bourbon Street

Steve Aoki: No openers are being promoted, but expect a steady stream of local DJs to prolong Aoki's arrival on the decks.

Costume suggestion

3OH!3: Slutty Dora the Explorer

GWAR: Slutty GWAR

The Soft Pack & Kurt Vile: Slutty blogger (though you may be confused with actual slutty bloggers in the audience)

The Intelligence: Slutty ex-member of The Intelligence

Steve Aoki: Slutty badminton player

Attend if

3OH!3: you are 14 years old or enjoy the company of 14-year-olds.

GWAR: you thought Iron Maiden's "The Number of the Beast" stage show was too tame.

The Soft Pack & Kurt Vile: you have purchased a 7-inch record in the past year.

The Intelligence: you have purchased a 7-inch record in the past year and hate Skully's.

Steve Aoki: you just want to dance, man.