Travel/portable speakers aren't really a popular topic from what i've searched. I'm still a rookie when it comes to audiophiling but I might be able to help you here.
I've owned several in the past year or so looking for the perfect travel speakers including Foxl v2, Jawbone Jambox, Monster Clarity Hd, Logitech Boom Box, & the Bose SoundLink v.1.
Hands down the Bose Soundlink has the best overall sound, its the loudest & clearest out of those 5, its really not even close. The only bad thing is its big about the size of a toiletry bag or a thick paperback. Also it has a proprietary charger so u'll have to bring that with u when u travel. If i had to choose a cheaper option it would be the foxl2. My dad won the bose in a raffle & just gave it to me so i got pretty lucky.

Edited by HereComesTreble - 11/29/12 at 1:18pm