New Drake to replace Kohler?

Quick question. We have a Toto Drake in our master bathroom, which works well. We have a Kohler Rosario Lite (K3434) in my kids bathroom, which generally is fine but needs plunging occasionally. I can't tell if it is my kids (5 and 7 year old boys), or if the Drake is that much better. Is it worth changing out the Kohler?

The Kohler was apparently considered OK at the time it was bought (I saw an old Terry Love list).

Richard Wagoner

From a consumer standpoint, I've put Totos in both mine and my mother's house. Hers were old 5-6 gallon flushers from the 50's, mine maybe 3.5gallon jobs from the 80's...the Totos work MUCH better than any of them. Nearly anything can be plugged, but it will take a heroic effort to do that with the typical Toto.