| 2026-05-27 | Perfect |
| 2026-05-04 | Best imaginable |
| 2026-04-05 | Optimal |
| 2026-03-08 | As good as it gets |
| 2025-09-20 | Prime |
| 2025-07-03 | Perfect / Concept |
| 2025-06-01 | Faultless |
| 2025-04-30 | 10 out of 10 |
| 2025-03-26 | Paragon |
| 2024-11-28 | Best possible |
| 2024-08-21 | Perfect |
| 2024-06-23 | Paragon |
| 2024-02-06 | Perfect |
| 2023-11-26 | Best-case |
| 2023-09-07 | Dream |
| 2023-05-25 | ___ gas law (pV = nRT) |
| 2023-03-25 | Like Camelot, where "the snow may never slush upon the hillside" |
| 2023-02-07 | Optimal |
| 2023-02-01 | Unbeatable |
| 2022-12-04 | Like a dream scenario |
| 2022-06-26 | Perfect |
| 2022-03-07 | As good as it gets |
| 2021-11-14 | Perfect |
| 2021-11-09 | Best possible |
| 2021-06-07 | Perfect |
| 2021-01-18 | Utopian |
| 2020-12-20 | Something to shoot for |
| 2020-03-16 | Perfect |
| 2019-08-25 | Perfect |
| 2019-06-01 | As good as it gets |
| 2019-03-29 | Apotheosis |
| 2019-01-29 | Paragon |
| 2018-12-18 | It can't be improved upon |
| 2018-11-08 | It doesn't get any better than this |
| 2017-10-16 | Like a five-star Yelp review |
| 2017-10-03 | Something to strive for |
| 2017-07-19 | 10 out of 10 |
| 2017-07-16 | As good as it gets |
| 2017-04-06 | Model |
| 2016-11-27 | Unimprovable |
| 2016-10-31 | Perfect |
| 2016-03-27 | Best |
| 2016-01-31 | 10, say |
| 2015-12-07 | Perfect |
| 2015-09-17 | Opposite of dystopian |
| 2015-05-05 | Toy company that once made the Magic 8 Ball |
| 2015-02-26 | Utopian |
| 2015-02-24 | Best possible |
| 2015-01-18 | Toy company that made Betsy Wetsy |
| 2014-10-12 | World peace, e.g. |
| 2014-09-13 | Toy company that introduced Rubik's Cube |
| 2014-01-03 | Perfect |
| 2013-07-17 | Rating a 10, say |
| 2013-02-25 | Perfect |
| 2012-11-01 | Model |
| 2012-08-22 | Worth a 10 |
| 2012-08-16 | Unbeatable |
| 2012-01-08 | Model |
| 2009-10-14 | Standard of perfection |
| 2009-07-28 | Perfect |
| 2009-07-08 | "In an ___ world ..." |
| 2009-03-30 | Like a score of 10 for 10 |
| 2008-11-26 | Nonpareil |
| 2008-11-24 | Just right |
| 2008-10-26 | Beau ___ |
| 2008-07-01 | Unimprovable |
| 2008-05-13 | Perfect |
| 2008-05-12 | Like a score of 10 of a possible 10 |
| 2008-04-18 | Best |
| 2008-02-10 | Toy company that launched Rubik's Cube |
| 2008-02-04 | Like a score of 10 out of 10 |
| 2007-04-23 | Perfect |
| 2007-03-28 | Old toy company that made Rubik's Cube |
| 2006-05-20 | Goal |
| 2006-04-13 | Model |
| 2005-10-17 | Perfect |
| 2005-06-13 | Perfect |
| 2005-02-02 | Ultimate goal |
| 2005-01-31 | Perfect |
| 2005-01-17 | Perfect |
| 2004-11-29 | Standard of perfection |
| 2004-11-15 | Perfect |
| 2004-10-19 | 10 out of 10, e.g. |
| 2004-09-13 | Rarely-met goal |
| 2004-05-03 | Perfect |
| 2003-11-24 | Perfect |
| 2003-06-19 | Something to shoot for |
| 2002-12-16 | Perfect |
| 2002-08-09 | Model |
| 2002-08-06 | Most suitable |
| 2002-08-02 | Best |
| 2002-05-03 | Thumbelina doll maker |
| 2002-01-31 | Something to shoot for |
| 2001-06-19 | Like a 10 |
| 2001-03-04 | Classic toy company |
| 2001-01-03 | Worth a ten |
| 2000-12-17 | Epitomic |
| 2000-04-25 | Rating a 10, say |
| 2000-02-28 | Rating a 10 |
| 1999-09-29 | Suitable in every way |
| 1999-02-28 | Model |
| 1999-01-25 | Best |
| 1998-09-17 | Perfectionist's aim |
| 1998-07-19 | 10, in a way |
| 1998-06-22 | Perfect |
| 1998-03-19 | 10 out of 10 |
| 1998-03-01 | Objective |
| 1998-01-28 | 10 on a scale of 1 to 10 |
| 1997-11-24 | Perfect |
| 1997-02-20 | Miss America, to some |
| 1997-02-16 | The best |
| 1997-01-26 | Consummate |
| 1996-11-05 | 10 on a scale of 1 to 10 |
| 1996-07-22 | Perfect |
| 1996-04-03 | Best |
| 1996-03-04 | Perfect |
| 1995-12-12 | Old toy company |
| 1995-08-21 | Having no drawbacks |
| 1995-08-15 | Perfection |
| 1995-07-30 | Nonpareil |
| 1995-07-13 | Rubik's Cube company |
| 1995-03-20 | Perfection |
| 1995-02-26 | Ne plus ultra |
| 1994-10-30 | Flawless |
| 1994-08-24 | Paradigm |
| 1994-08-07 | Ne plus ultra |
| 1994-05-29 | Pinnacle |
| 1994-03-08 | Model |
| 1994-02-25 | Standard |
| 1994-02-16 | Exemplar |
| 1994-01-25 | Old toy company |
| 1993-12-12 | Perfect |