I've had several cameras and finally settled on the Aqua Vu HD7i. HDMI output and adjustable display with zoom. Good battery life and their customer service is second to none.
I take friends and children out and they love the large screen so they can all watch. It's also upped my game especially with light biting perch. I hook them before I can even detect a strike.
I've had other no name cameras, once they flood you are stuck with it, no customer service. I've also had aqua vu micro camera systems and they are nice to dip holes when setting up, but I've got an ATV so I can carry the larger camera anyways.
If you are concerned about weight, the small Aqua Vu micros are the way to go. If not, go big!
I bought my HD7i on eBay, brand new, $500 with free shipping. The deals are out there...