Do you use headphones?  I'm considering investing in a good set for travel.
I do use headphones quite frequently actually.  I personally use Bose.
I've heard those are the best.  What should I consider when I purchase?
you would need to consider what type you would prefer, earbuds vs actual headphones for instance.
I have earbuds but thought headphones would give me better sound and would drown out other noise.  What do you think?
I definitely agree with that.  Bose even offers some discounts on on their discontinued headphones if that interests you
That's great.  I mean, I use my earbuds all the time, but when I travel, I like to not hear outside noise.  I love the Bose brand.
Not trying to sell you on the Bose Brand...but the Bose QuietComfort Headphones 2 would be a good place to start