I wouldn't put her as pretty, certainly not in the same class as other actresses. I would class her as attractive but average, except for her feet. She gotts some ugly feet.

As for Data not using contractions, it was part of the programming. It was explained in the first episode with Lore. Despite that, he does use them a few times.

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A Nerd can figure out how long it will take the original Enterprise traveling at warp 6.5 to travel from Regulus to Antares.
A Geek will think he can use that to pick up a girl in a bar.
A Dork knows he can't pick up the girl with it, but will hang around for hours anyway, just in case she asks.
She might. You never know.