25th Start... This assumes two days off for travel... Would this still be the case if it was STL?
G1 Saturday 25th
G2 Monday 27th
G3 Thursday 30th
G4 Saturday 1st
G5 Tuesday 4th
G6 Friday 7th
G7 Monday 10th
It's tough to crystal ball things. For Game 1, I'm sure Jacobs would love a Saturday night game, and NBC has a wide open schedule with junk in prime time (The Wall and Dateline) and an SNL repeat. As you note, it would also set up a nice double-dip in terms of weekend/holiday games if they went for Memorial Day, too.
However, in the other league having their playoffs, the NBA's Saturday night game is a Game 6 Bucks@Raptors game. I know very little about basketball, but my guess is that the Game 7 scheduled for Sunday night is far less likely to take place - it's Portland@GSW. There's also no Red Sox competition on Sunday night - and, even if it's the Cup Finals, the NHL still has a pretty heavily balkanized viewership.