In my opinion, one of the most important aspects of travelling is freedom. Therefore, I prefer to either travel alone or with a loved one.
with group, more interesting
Family
I prefer them both. Because when you're traveling alone, you need to take care of yourself. And when you're traveling with a group it's more fun, and if something happens you're not alone.
Alone is no fun! I would prefer to travel with my friends firstly because of safety. Also, you can afford much nicer accommodation.