Hi Mary,

A new Yaris would be the most reliable option, given Toyota's reputation for quality. A Fiesta would be close, in terms of reliability, and more fun to drive, but less roomy in the back. The Clio is easily the most stylish and is hugely comfortable, even on longer journeys (not all small cars are), but I can't guarantee it being as reliable as the Yaris (even though Renault did very well in the most recent JD Power quality rankings).  Safest option is a new Yaris, though.