"You sit proudly in this cave , like a Queen of Egypt.
In my service to you , I shall never know rest.
To prove my devotion , I have stolen this ostentatious offering.
But I'll show you things your dark blue eye haven't seen , smiles like a lake in the sun , blossoming like a lotus."
she would most likely toy with me until she gets bored (i wouldnt complain tho <.<; )
"We want a game that's going to chop us the second we screw around, or just flatten us at its whim... until we finally beat it. They demand more of us, and we rise to the occasion because we're that good. And that feels good. And that's why we game." Rus McLaughlin, IGN
I would definitely go with Saber as my number one pick. As for the rest of them, that's tough. It'd probably go Arcueid, Akiha, Rin, Ciel, Hisui, Hohaku, Sakura, though I can't really compare each of them since they all are amazing in their own ways.
Hisui, hands down. She doesn't do well in crowds, so just walking, getting something to eat, and heading to a park, forest, or beach would probably work. I'd make sure she didn't bring her maid uniform though