I prefer by myself. For the single traveler, the greatest advantage is freedom . I am perfectly free to choose my plan and schedules.

赵：我喜欢独自出行。对孤身一人的旅行者来说，最大的优点是自由。我完全可以随心所欲地选择旅行线路，规划行程安排。

youdao

Obama is leaving the details to lawmakers, but he has pledged that health care legislation would do three key things: decrease health care costs, give Americans the freedom to choose a new doctor or health care plan, and ensure all Americans have quality, affordable health care.

NPR: Official: Health Care Vote Could Come In July