They're all scams and then again they're all not scams... Depends on your relative time frame. If you look all these projects from a relative time frame of 100 years, then they're all instamine scams and contain unfair distribution models...
Why don't you do your research. Follow the devs. Use the tech. Speak with their community members. Look and what's been accomplished and what's in the pipeline. Last thing I would do personally is listen to a bunch of "experts" and use a poll to ask "mirror mirror on the wall, who's the trolliest of them all?"... Too vulnerable to deception.
Honestly, they're all wonderful projects with so much untapped potential. These are exciting times in the world of fintech. Each one of those cryptocurrencies listed will play a major role in the unseen future. It's pretty unfortunate that people let their emotions get the best of them and try and smear mud on someone else's hard work. We should all be working together to try and promote the adoption of cryptocurrencies and educate people everyday about the benefits of using them in our daily lives.
But then again, what do I know. Maybe I'm just a lonely troll looking to rain of someone's parade.
Just take the time and do your due diligence
:-)