I always travel alone. I mainly go backpacking though, which means I rarely am 'alone' as I meet tons of people in the same boat as me. It's good for getting laid more often than not. I like my own company so I never get lonely or feel awkward if I dont meet anyone, but I am very sociable person - twice, I went on 6month trips with two of my mates. I didn't enjoy it anywhere near as much - my mates preferred 'our' own company rather than making the effort to speak to other people, which didn't fit my personality at all.