Do you already have a reservation for these? It can be tough to get a "prime time" especially for Lupa and Locanda Verde. I've been able to get 8pm at Maialino but by booking the day those days open.
I'd do Scarpetta because it's not too crowded, not too loud, and I like the modern look of the room a lot. We did their tasting menu earlier this year and it was delicious.
Lupa and LV both get pretty loud. Maialino is less hip, more family friendly, I suppose?