Cleanliness, that includes the way the room smells.
I notice older hotels have that horrible musky smell that's buried in their carpeting.
Clean sheets, clean draperies, clean towels (please no stains on white towels), clean carpets, no dusts at all.
I like extra (free, with no added costs) amenities like coffeemakers, hairdryers, fancy toiletries (not Dove or Nivea packaged in bottles with the hotel's name on it), bathrobes, slippers, mini bar within the room (of course mini bars are not free).
Turndown services with a small bar of chocolate is nice, too.
Bright rooms, because dark rooms just feel smaller and sad.
I also think that patterns on any textiles, e.g. bed covers, carpets, & curtains, make the room feel much older.
I stayed in a Marriott Courtyard before & it's an older hotel.
I didn't mind the old-fashioned decors, but what I didn't like was the musky, old smell of the room & the horrible bed. Maybe I'm just picky, but when I'm tired after traveling, I'd like a Heavenly Bed or something similar.
To me TVs are not essentials. Sure it's nice to have a flat-screen TV in the room, but I think good channel lineups are better than having a flat-screen TV with only basic cable.
Nowadays, I think that having an internet connection within the room is more important than having a fancy TV.