There is great way to work upon this. You always go for the coins which have unique ideas. Obviously the coins which are just work of copy paste from other ideas are generic one and they will never work properly or may betray their investors in the time to come. Its always better to ignore such coins and thus what you get leftover is the crypto coins which are worth investing into.

I am always looking out bounty section and ANN section of particular coins to know more about them. Will always check how they are being recognised in the community. I will invest in those where the crowd is moving. Because in crypto the more the supporters the more success to the crypto coins.