I think Lakers os Clippers will be champions this season. If you choose between two, then probably Lakers more.
Underestimating the Bucks and Toronto.
Remember, the Raptors are still a solid team despite the fact that they lost their best player from last season.
Still too early to say the Lakers or the Clippers will become the 2020 NBA champion.
Will it hurt their feelings if I say Mavericks will be the champ this year?
Nah, I'm quite scared with the Mavericks too
. Luka played very well this season, and I feel he'll do much better in the remaining 8 games upto playoffs (though too early to conclude). Well, Porzingis is good as well 
. If it weren't about Luka they won't get close to bounding in, in this coming playoffs, note their last was 2015-16 season. Look at his stats:
Source: https://www.basketball-reference.com/players/d/doncilu01.html
It is too good to ignore. We don't know how far this young man can go. In addition, he's a type of guy worth rooting for, and that is for certain. I just idolize Bron that much but if I'll pick another team I'd go with Luka's
. Playoffs is going to be different, Dallas Mavericks is already guaranteed with the playoff spot but they will be tested in the playoffs.
Luka alone can't make his team successful but what they showed this season is very impressive as they don't fully rely on Luka alone, I believe in them, they are full of young and hungry roster and I believe they will give a good fight of whatever teams they will play in the playoffs.