Instax Vs. Holga camera?

I am looking to get a new camera that is reasonably priced (such as the Holga/Instax) to make some really unique-looking photographs. I'm just having a hard time choosing between the 35mm Holga or the Polaroid-esque Instax. The Instax is very intriguing but yeah I'm very indecisive. Does any camera nerds have any input or tips on what they think is a better choice? Thanks!