I bought the Bose portable ipod dock 5 years ago for $300 and i've never regretted it. I use it for parties, music video shoots, watching movies, etc. It's more than the average person needs, but it's worth the money.
UE Boom. It has good sound and battery life. Only reason i never bought one is because the rechargable battery is not removable. I figure over time it will stop holding a charge. Also be careful with the bass. We blew one of these at work slapping it too hard.
The jbl flip is decent as well but doesnt have as much bass.
"The Mass Fidelity Core creates a huge, 3D soundstage that sounds like it is being created by a pair of speakers 8 feet apart, and the sound quality is absolutely wonderful! After the designer played a few demo tracks from his phone, he let me try the Core using my own music from my iPhone."