I saw many upcoming projects are offering same kind of ERC 20 token which can get through any Ethereum wallet. It doesn't need any specific wallet. On the other hand hand some crypto companies have unique code and they have specific wallets for their tokens. I am a little confused which kind of token is better. ERC 20 or either the unique one ?
It all depend to the features advantages a token will offer. Some platform like the one mentioned above is NEO which offers GAS as passive income for the NEO token holders. ITs one hell of a good investment for a holder. There are more of these platforms like EOS, WAVES, NEM and so on. Its up for you to learn them all.