It's very early days to be thinking too deeply about line-up! You just want something that will be good for against the computer for now.

Seeing as you have Guy already at 3 star, you should use him. I'd say a safe bet would with Hinata and Sasuke. You'll want to raise them to 3 star as soon as possible, perhaps Hinata to 2, then Sasuke to 3, Hinata to 3.

After you have your basic team for completing stuff in game, seeing as you're someone who uses the forums , go check out "stacking position 1" (so you don't make some mistakes in early game , like many of us did when starting out!) and consult the forum and people in your server and group when you need help.