| 100% | SEA | 3 | The —, 1973 stage play by Edward Bond |
| 89% | THESEA | 6 | 1973 stage play by Edward Bond |
| 72% | SAVED | 5 | 1965 stage play by Edward Bond |
| 66% | TABLEMANNERS | 12 | 1973 stage play by Alan Ayckbourn; first part of The Norman Conquests trilogy |
| 62% | MAGNIFICENCE | 12 | Stage play by Howard Brenton first produced at the Royal Court, London, in 1973 |
| 60% | BINGO | 5 | 1973 Edward Bond stage play about William Shakespeare |
| 58% | EQUUS | 5 | 1973 stage play by Peter Shaffer |
| 58% | THEPARTY | 8 | 1973 stage play by Trevor Griffiths |
| 58% | HABEASCORPUS | 12 | 1973 stage play by Alan Bennett |
| 57% | ADELICATE | 9 | 1966 stage play by Edward Albee |
| 55% | THENORMAN | 9 | Trilogy of 1973 stage plays by Alan Ayckbourn |
| 52% | THREETALL | 9 | & 13A 1991 stage play by Edward Albee; 1994 Pulitzer Prize for Drama winner |
| 51% | RHINOCEROS | 10 | 1959 stage play by Eugene Ionesco featuring the character Berenger |
| 51% | THEROVER | 8 | Stage play by Aphra Behn subtitled The Banish'd Cavaliers premiered in 1677 |
| 50% | THEWILDDUCK | 11 | 1884 stage play by Henrik Ibsen first performed the following year |
| 50% | MISSJULIE | 9 | 1888 stage play by August Strindberg first performed the following year |
| 49% | BLUEROOM | 8 | The —, 1998 stage play by David Hare |
| 49% | HOSTAGE | 7 | The —, 1958 stage play by Brendan Behan |
| 49% | KNACK | 5 | The —, 1961 stage play by Ann Jellicoe |
| 49% | KITCHEN | 7 | The —, 1959 stage play by Arnold Wesker |
| 49% | SKINGAME | 8 | The —, 1920 stage play by John Galsworthy |
| 49% | WEIR | 4 | The —, 1997 stage play by Conor McPherson |
| 49% | BLUEBIRD | 8 | The —, 1908 stage play by Maurice Maeterlinck |
| 49% | HOMECOMING | 10 | The —, 1965 stage play by Harold Pinter |
| 49% | MAIDS | 5 | The —, 1947 stage play by Jean Genet |