All of them are'legit/good' projects depending on how you look at them. If I ha dto choose I would only invest in XTZ (from a purely investor perspective).

The 'worst' of them IMHO is ADA as their supply is ''infinite'' in my eyes and also the delays, but theorically they'll get things done soon or later. They have a good group of researchers/devs though (that what people say).

XTZ I never researched them deep enough, I only know that they're a smart contract platform with staking & very good tech. Don't ask me why, maybe it's their marketing, coinbase listing and the fact that they never experienced a bull cycle, but I like them.

BAT. I'm using Brave daily and I love the utility that they provide, but (again don't ask me why), I don't feel specially attracted by their tokenomics.

The whole point of my post is to remark the 'fact' that a lot of people (specially newbies) are forgetting about bitcoin because they think that it's 'old tech'. And it's very necessary to understand it to realize the whole point of 'crypto'.

I have to say, I'm a bit maximalist in that sense. Take my opinion with a grain of salt. I'm a microcap/bitcoin player. HIVE is my highest mcap coin (even at 0,1$). But nowadays I'm not that 'diversified' (If it's still possible in the space). I'm in 3-5 projects max. You can't understand in what you're investing if you have like ~20 different coins or so. You're (potencially) more uninformed & more likely to FOMO/panic selling.

Hope you get my point :)
I should say, this isn't financial advise.

Have a good day.