Favorite post-rock albums? ?

Ok so I am going to answer all of that in one fell swoop.

This Heat: All post rock are direct descendants from this band. 

https://m.youtube.com/watch?v=h_P_5OTEAeM

"Can you see similarities, between post-rock & progressive rock?"

No. I guarantee you it took a lot more effort for Yes to the album "Tales From The Topographic Ocean" than it took Postal Service to record the album "Takk".

Post-rock is almost as boring and pretentious as prog rock. If the songs aren't simple, catchy, and about cars or girls I'm not interested

Mogwai - Mogwai Young Team

God Is an Astronaut - All Is Violent, All Is Bright

Godspeed You Black Emperor - F♯A♯∞

Líam - MMIX 

Daturah - Reverie

Massimo Volume - Da qui

BQ: I think VU have influenced post-rock a lot, for the sound *and well, listening to "starless" I would say absolutely yes, it's very post-rock in the middle part, from 4:30

BQ2: (maybe, but just maybe) 90's, late 90's-early 2000's

BQ3: Idk Can, NEU! & Faust

BQ4: perhaps in the complexity and duration of the compositions, there are many 'suites' in both genres. Otherwise they seem to me almost opposed to each other (lyrics absent or spoken in post-rock / preponderant and solemn in prog. music much more linear and sometimes repetitive in post -rock / extremely varied in the prog.) I know very little prog anyway.

You've mentioned a couple of mine by GY!BE. I'll add...

Mogwai — Come On Die Young

Sigur Rós — Ágætis byrjun