hahaha, i just wanted to ditto your "m.arch portfolio/app hell" comment. sorry can't be of help -- background is non-arch and i'm terrible at drawing. i just use a pencil or sharpie, whatever's more in reach.

Nice cheap and simple black pen for thick lines (Pilot V Signpen) +
Nice cheap and simple black pen for thin lines (Pilot Hi-Techpoint V5)

Barely ever touch my Rotrings, too much hassle.

Ditto the above. Also those clasp pencils, can't remember any makes...also use Copics (or whatever the brit equivalent is) pretty widely for the colour rendering bit...

pigma microns

Sanford Uniball Micro

I use the faber castells for sketching as well. I have the set of blacks of varying thicknesses, then a small color set. But for serious rendering work I use my prismacolors. If you think they're expensive, but them up one or two at a time. Every time you go to the art store for paper, drafting tape, and foamcore, add on a prisma to the order, and you'll have a set before too long.

Rotring's disposable felt-tips are good and come in a nice range of thicknesses.

i use either a sanford uni-ball fine for lines or the thin tip sharpie...the thin-tip sharpie can bleed to the other side of the page if the paper is not heavy...

i use prismacolor colored pencils for color rendering...much easier for me to use just because i can apply the colors slowly and layer them...doesn't give a high tech look though like the markers

Pigma Micron 03 or 05 first, then thick them lines up with Pilot Signpen and/or Sharpies.

Prismacolor Pens- using the 30% and 70% gray first for shading- then blending with colors over it.

Depending on scale of drawing, and on what kind of paper- must evaluate that first before choosing weapons of choice...

layout: sanford col-erase blue & carmine red

ink: staedtler permanent lumocolor F, M, S, & B, staedtler pigment liner 0.1-0.7, pigma micron 0.1 - .07, le pen, pentel sign pen

color & tone: prismacolor grey tones,colors & blender

to ink i just pick 2 or 3 pens; i like the staedtler F

pentel sign pen for layout and most sketches

v&c "stylist" for fine lines

PITT or Pigma-Micron brush pen, Kohinoor NEXUS for sketching

AD and TRIA markers in assorted colors.

I would highly recommend "Le Pen", they are super cheap, fun to use, come in some interesting colors, and fit real well into a spiral bound sketchbook. maybe im only saying that because my office supplies them and i can take as many as i want as often as i want...

Delvis, my old office stocked LePens and they are my favorite - but I can't find them anywhere! Will have to start buying in cases off the internet I suppose - I'm tired of using Sharpies.

I can't ever stick to any one pen for any length of time. It all goes in cycles, continuously finding new things to draw with. I don't do many finished renderings but for sketching I have recently adopted construction pencils for their flat led enabling different line thicknesses from one pencil on the go.

I don't understand the question

Chartpak AD markers are great and give you some good bold color. They are especially nice when adding some colors to a sketch over trace paper. Highly suggested and long lasting markers.

Micron + Chartpak.

All of them.

6mm graphite leads and charcoal sticks on canary yello trace or GTFO. 

Buts that’s too messy for office use. Fountain pens and 0.7mm graphite. Oddly, the same I was using 13y ago when this thread was first created. 

This is probably a very unpopular opinion, but I can't stand graphite. I hated pencils even as a kid. Also never been fond of yellow trace.

flair paper mate.  Anything else is just a crutch. 

chartpak or you suck