Every first round matchup is going to be interesting unless Utah is involved.I think every lower seeded team can really make all of the top 3 teams work for the series win. Houston and Golden State are good offensive teams who can steal a game or two from either SA or OKC imo. If there's any significant injury for either of the top two teams, I could see a disappointing first round knockout possibility. Probably less chance of that for the Thunder due to officiating assisting them. Then of course Dever/Memphis can go either way.
Though if you're only picking one, Lakers vs anyone will be the "must-watch series". Lakers vs Spurs. Lakers vs Thunder. Lakers vs Clippers. All of them have good storylines and have a lot of star power. Most of the western conference matchups throughout the playoffs will be worth watching imo.
Eastern conference. . .I honestly can't think of any series that'll be worth watching until the ECF unless Rose comes back to make things interesting. Every eastern conference team below the Heat would struggle against the 8th seed in the west imo.