No shoes are better than Vibrams five fingers for Gym as in gym you mainly need Proper grip , balance , stability , flexibility . Vibrams are made in such way that these Things will be felt as soon as you start using them and you will be able to train like a pro :)

Vibram FiveFingers shoes offer a versatile minimalist footwear solution. Created with individual toe pockets for flexibility to replicate the barefoot experience, these lightweight alternatives to average athletic footwear allow your feet to engage the strength of natural foot motion, yet remain stable with the construction of contoured grip-driven soles that only Vibram can offer.