All things considered, I would go with the Garmin 160 blue, basically a 160 red with a 50/200 khz transducer as opposed to just the single 200 khz frequency, if you want to get the most out of a fish finder get a dual frequency and learn how to use both frequency's, you'll catch more fish.
I would also consider the Garmin just as easy if not easier to use then any similar unit on the market.
Just my .02 worth, good fishin.