Speed is just a number. I ride not because I have to get anywhere but because I like to ride. I'm a big fan of the Electra Cruiser 7D. It has a few gears 1-2 being pretty low to make any hill rideable and a few more for the flats to go the distance if I want.
I find the Walmart cruisers to be a little on the small side for me (but fit is different) and they do have a couple of multispeed cruisers that would fit your bill. IF you have a local shop you should be able to find a nice one but that depends on your needs. Good luck and good riding.