Hey guys,
Which are you favourites, or your recommended coins to invest in 2020? And why?

Still Bitcoin. I still haven't found any new altcoin that is worthy of investment. If I had to choose then it's probably ETH. But ETH isn't looking great either recently due to their two in a month hardforks lol. I will hodl my Bitcoin strong for 2020. Exciting times ahead as halving in underway.
A couple of my favourite 'newer' altcoin projects are: BAT and VeChain. They all got great room to grow in a bull market. With strong teams and products. Actual live products that are working, with users who use them daily.
Other interesting altcoins are: Callisto, ADA and Chainlink. Especially Chainlink and LINK is interesting if they can suceed with what they are working on.
BAT and Vechain aren't new. They have been launched years ago if I remember correctly. I used to think that BAT has an interesting concept but their browser development and adoption don't look exciting anymore.