i got the av6 mostly coz i like the blue color and the white detail. i like the old school models the most. someone i knew that knew a lot bout street fashion but got ridiculed for being a loser wore them. posers were kopping his style a couple of years later.
LPE's and Era's and essentially variants of the Authentic. Generally speaking an Era is an Authentic with ankle padding and the LPE is a slimmed down Era. There are also Lo Pro Authentics. I personally like LPE's and have been wearing Era's my whole life. Not a fan of Authentic's due to the lack of ankle padding.