All of them have at least a few prog elements.... I'd say The Doors' overall sound has prog elements, with the jazz-oriented drumming of John Densmore, the classical trained keyboard man Raymond Daniel Manzarek, the bluesy guitars of Robbie Krieger.... and also the brilliant, arrogant, "pretentious" (to use a word that's in its prime around here) and psychaldelic lyrics and baritone-singing of James Douglas Morrison. If we take one album, it has to be either Strange Days or The Soft Parade.... The soft parade was more like The Doors' attempt to write their Sgt. Pepper, and it failed because Krieger had too much to do in the writing not only of the music but of the lyrics (try Touch Me, funny song but ultimately it sucks)... The exaggerated use of brass ruins some songs, but The Soft Parade is a very interesting track; Strange Days have masterpiece When the music's over, the title track, my wild love, love street.... it's an amazing album, only surpassed by The Doors, the original masterpiece. L.A. Woman is too american-rock oriented, but it has wonderful bohemian sounding track Riding on the Storm, plus excellent LA America, WASP (Texas RAdio and the big beat).... Morrison Hotel doesn't shine for me, it's my least favorite. And Waiting for the sun is very good, but should they have included the entire Celebration of the Lizard it would've been greater, instead of just Not to Touch the EArth.
So Strange Days for me.
I wouldn't include here the weak attempts by the remaining band members to keep alive something that was DEAD. Because, without Morrison, The Doors was RIP. I don't care if the music was still decent, it was NOT THE DOORS.
There's no Doors without the Lizard King.