For predator fish, bass will be a much better tank fish. They "tame" quicker and will readily adapt to higher light intensities than walleye. They can be very aggressive in a tank setting. Walleye will be skittish at normal room light levels. Bass will not mind higher light intensities and will learn to eat most anything food wise you put into the tank. I once had bass within a couple weeks eating dead minnows dangled in the water from my fingers. I doubt walleyes would learn very fast to to do that.
As Jm said, filtration and water quality is paramount. In my experience, you can not have too much filtration; the more the better. Do not crowd fish; the more room the better. AS noted 1" per gallon is not good especially when fish get larger such as 4" to 6" or more. You now have to go by weight and waste production (ammonia). Routine water changes (15% to 25% every week or two) are also important.
