Ethereum is more a platform prject, to allow projects to use tokens based on ethereum.
Ripple is just a currency for banks and companies.

Lol.
Apparently the OP succeeded in making a huge post of nothing, but he could have started to check what is a Ponzi Scheme... he wouldn,'t have bothered writing all this nonsense...

What I think is that ETH is increasing its ATH each year.
What I know is that nobody knows the future, and if it was the case, he won't say anything for sure.

Both projects are amazing.
Team of each projects are constantly working on their platform, and trying to gain new contracts in the real life, to expand their business.
Already a lot of projects on each of those both platform.
Choose the one you prefer, or buy both of them. But selling one to buy the other is nonsense in my mind.

Satoshi is just a pseudonyme, that a team or a guy used to build a new concept in his room.
This name is probably related to nothing, and even you can be sure that if it is only one person behind it, he wouldn't be dumb enough to tell it to the world.
As soon as he would tell it, his life would be a nightmare.

Regulations are not a bad thing everytime. It can be great to build good fundations and avoid going and following millions of different path and doing nonsense thing...

Why reducing the choincce for only those two crypto ?
Why having to make a choice between both of them ? You can buy both of them...

I'm not sure there is a big differences with ponzi and piramid scheme.
Both of them earn their rewards thanks to the newcomers.

Enlight me if I'm wrong but I think it's the same thing.

The best way is to follow forums, some active telegram groups talking about crypto... etc
It takes a lot of time to be aware of all the crypto news, especially with all the projects out there.

Another way is to check the mainstream blog about crypto, but you'll have the news after everyone. And if you are a big investor, it's bettter to be quickly on a specific market than late.

Buy the rumor, sell the news, like they say.

The war is the best cash machine ever (unfortunately).
So I'm sure that in case of a big war, crypto will raise a lot. For many reasons. Governments that want to transfer money without beeing seen, decentralised systems that would be more effective than current working processes... etc

When the title is "Bitcoin" on a Bitcoin forum, you can't expect a relevent post.
Then I opened it. I was not disapointed. A post full of quality and technical points of view by the OP.

If this project works as expected, it will be a famous thing in the future years, and a good flagship for the cryptoworld.

That's a good thing to know

the team seems to be very involved in the anti-scam tools and the safety of its coin.

Check by yourslef is probably the best advice.
Everybody will tell you to buy the things they bought, to securize their spirit and feel confident in their past choices

NEO is one of the strongest project right here.
Even china that was against a bunch of crypto stuff, validated the NEO company.

There are already plenty of projects started on this platform, and the fame behind it is still growing, without speaking the strong technical fundation.

Whitepaper is not a guaranty.
It's telling you what is the strategy of the team.
It's not because it's written that they will build it.
So yes you can read it for understanding the point of the project, but don't read it expecting that it will be delivered for sure.

The safest coin among all I read and followed, seems to be NEO in my opinion.
Lot of projects going on this platform, huge dev team, regularly giving news and updates. Investors are numerous on it, and most of it, I bought it very low

ADA is currently a vaporware, which means the project is very ambitious but it's selling only wind right now.
All I ask is that they prove me that I'm wrong and that they will do everything that they say. But currently it's just show off.
I wish them the success that they claim obviously. But let's not be naive, 99% of those amazing projects on the paper, will not raise.

Technically speaking, a airdrop can't be a scam, because by definition, a airdrop is free coins/token given to you. So coins for free.

But yes, some projects are shady and others are not. And sometimes you can't even know if it's a scam or not. That's unfortunate, but it's like in real business... You can invest in bulshit projects and they will go bankrupt quickly.

What is best between a mushroom and flower ?

This question is not relevant, as your question.

You are talking about different things.
Bitcoin is a coin built to be a currency, and only that.
Some altcoins are projects, some other are platforms, some other are secure way of communications...
You can't compare 2 things that are not related.
It's like comparing whisky and fruit juice...