A general comparison between thin and thick marker paper

Thicker paper         100-250 gsm                Thinner paper                  45-90 gsm

The paper use more ink	The paper use less ink
Front and back are the same on most thicker paper	Front and back are seldom the same; you can not use the back
Large value change, especially on dark and dull colors	Value change but not as much (dark colors looks darker on thin paper)
The time it takes for the ink to dry is normally quicker	The ink stays wheat longer (allowing you to blend wet in wet)
Easier to layer more (there is no problem to layer).  I have never experience the ink staying on the surface and creating puddle.	Will not take as many layers (to many layers will create problems). If you put down a lot of ink you may end up with a puddle.
Feathering and bleeding is less common on thicker paper	Feathering and bleeding occur more
Bleeds normally through to the next page	Are more often bleed proof; that is, it doesn´t bleed through to the next page
Colors can look milky on thicker paper	Very rare that colors look milky on thinner paper

I also found that if you work on a thin paper you might want to work fast, because your ink can create lines that are difficult to cover up when the ink has dried. On thicker paper however, it isn´t as sharp lines so you can take your time, and if you want, stop the drawing and continue later on.



All papers that I have reviewed in a glance: 

Conclusions of group one: Thin layout paper (45-65 gsm)

Best

Letraset Layout paper

Borden & Riley  #125 marker paper

AMI Design-Block

Ok

Deleter Neopiko

Poor

Bienfang Graphic 360

Copic manga illustration paper

Strathmore Marker paper

Conclusions of group two: Thin layout paper (70-85 gsm)

Best

Stylefile marker paper

Hahnemühle fine art manga paper

Letraset Bleedproof Marker pad

Clairefontaine paper

Schoellershammer Marker paper

London Graphic Centre Marker Paper

Daler Rowney Graphic Series Marker Paper

Shinhan Touch Marker Pad

Ok

Cass Art London Marker Paper

Copic My bleedproof Marker pad

Canson Marker paper

Magic Marker Bleedproof

Poor

Mont Marte Bleedproff Layout paper

Bienfang Young Artist marker paper

Graphics direct Marker paper

Frisk Graphic Art materials bleedproof Marker paper

Goldline Marker pad

Monochrome Crafts marker paper

Conclusions of group three: thick paper (110-120 gsm)

Best

Hahnemühle manga illustration paper

Ok

Montana Marker paper

On the Run Marker pad

Stylefile Marker pad

Molotow marker pad

Poor

Conclusions of group four: Thick paper (170-250 gsm)

Best

Strathmore 500 series Bristol Plate Surface

Canson Illustration

Neenah paper

Bee Paper Aquabee Manga Artist pad

Ok

X-press it blending card

Holtz Perfect Coloring Paper

Borden & Riley #234 Paris Bleedproof Paper

Maxon

Poor

Malzeit Manga Skizzenblock (AMI)

Goldline Bristol Board