In general - I love "Ancient" tartans first and "Weathered" tartans second. I am also very partial to Isle of Sky (which I own) and Dutch Friendship (Which I don't). I have a slew of "District" and "Irish County" tartans which are wonderful - and My "Ancient" Caledonia seems to be getting a lot of air play these days...

Ah, so many tartans, so little time...