The main benefit over BTC would be the Scrypt hashing algorithm, for which mass production of ASIC's is less feasible, at least not by a factor of 1000 over GPU's like we're seeing on Bitcoin at the moment.
This means litecoin stays out of the hands of chinese chip monopolists, and into the hands of the well distributed userbase of graphics cards.
I dont believe in this. Even factor of 10 in effeciency over GPU will make graphics cards mining unprofitable. It is only matter of time