It's clearly a sign of maturity, then, to begrudge someone's choices for favorite directors? Not so sure about that.
Tarantino is to film what DJ Shadow is to music, as someone wrote in the Village Voice: he takes things from everywhere and makes those things his own. The elements may not be original, but the constructions - and the films he makes from those elements - are.
Anyway, I have a friend who's about ten years younger than me and loves Bogdanovich even more than Tarantino, and not just for THE LAST PICTURE SHOW and PAPER MOON, but for many of the later films, whose reputations aren't as strong.
A few of "my" great directors that many people haven't gotten around to checking out:
Jerry Lewis (THE PATSY, THE LADIES' MAN)
Arnaud Desplechin (ESTHER KAHN, PLAYING 'IN THE COMPANY OF MEN')
Michael Haneke (CODE UNKNOWN, LA PIANISTE)
Michael Cimino (HEAVEN'S GATE)
the "other" Powell & Pressburger films (A CANTERBURY TALE, GONE TO EARTH)
Jacques Tati (PLAYTIME, M. HULOT'S HOLIDAY)
Mitchell Leisen (REMEMBER THE NIGHT)
the "other" Frank Capra (THE MIRACLE WOMAN)
Kurosawa Kiyoshi (PULSE, CURE)
Alexander Sokurov (RUSSIAN ARK, DAYS OF ECLIPSE, MARIA, MOTHER AND SON, STONE, THE LONELY VOICE OF MAN, MOURNFUL INDIFFERENCE, etc)
Michael Almereyda (HAMLET, NADJA, HAPPY HERE AND NOW)
Leo McCarey (MAKE WAY FOR TOMORROW, GOOD SAM)
Sacha Guitry (THE STORY OF A CHEAT, FAISONS UN RÊVE, LES PERLES DE LA COURONNE)
Boris Barnet (ALYONKA, BY THE BLUEST OF SEAS, THE HOUSE ON TRUBNAYA SQUARE)
King Vidor (THE BIG PARADE)
Victor Sjostrom (LOVE'S CRUCIBLE, A DANGEROUS PLEDGE, HE WHO GETS SLAPPED, THE WIND)
Andre de Toth (DAY OF THE OUTLAW, PLAY DIRTY, NONE SHALL ESCAPE, THE LAST OF THE COMANCHES)
Albert Lewin (THE PICTURE OF DORIAN GRAY, THE PRIVATE AFFAIRS OF BEL AMI)
Kenneth Anger (PUCE MOMENT, SCORPIO RISING)
Bruce Conner (A MOVIE, REPORT, COSMIC RAY)
Stan Brakhage (DOG STAR MAN, VISIONS IN MEDITATION#2: MESA VERDE)
Clint Eastwood (BREEZY)
John Carpenter (PRINCE OF DARKNESS, ASSAULT ON PRECINCT 13, CHRISTINE)
early Brian De Palma (HI, MOM!)
Cy Endfield (ZULU, TRY AND GET ME!)
Phil Karlson (KANSAS CITY CONFIDENTIAL)
and more, and more, and more...