The Toto toilet has a quiet flush but does the job. It comes with a five-year warranty and is not ADA compliant. Uses gravity action for flushing.

Kohler Wellworth Round Front with Right-handed Trip Lever toilet comes in many more colors than the Toto, but functions the same. Saves on water, but not as quiet.

The St. Thomas is an attractive toilet and the color choices are great. This toilet works well as the others and is relatively quiet.

The Cheviot Astral Water Closet with Round Front only comes in a white finish but is as attractive as any toilet. The water consumption is the same as all the others.

All of these toilets are very similar in function and price with the exception of the Cheviot at about $40 more. It's a nice looking toilet but you are somewhat limited with the color. With all these being almost the same, it's really a matter of looks that may determine which of these products you pick.