I use AKG mics extensively, and some Shure's as well. My impressions of the ones I'm most familiar with-
AKG
D112- Fair on kick, rocks on bass cabs and stand up bass. surprisingly good as a vocal mic on some voices.
D690/D770- Very good dynamic instrument mics. Good on brass, harmonica, snare, cabs, live vocals on some voices.
D320/330 series- very good all purpose dynamic. very good live vocal mic.
C2000B-great cheap versatile workhorse- fair on vox, acoustic, rocks as overhead pair, toms, conga, Djembe, etc. A little colored, in a good way.
C414B-ULS- Great on acoustic, mandolin, toms, snare, fair on strings, very good on a minority of vocalists. Possibly the most versatile condenser I own.
C451-good all purpose small diaphragm condenser. very good on overhead, acoustic.
C1000S- good nightstick
C3000B- good fishing lure
C535-great live vocal mic
SHURE
SM57/58- classic stage mic, good on snare, cabs, sax, some vocals
SM7/7B- Great dynamic- good on almost anything, especially voiceovers, a *great* live stage mic for smaller venues.
KSM44- industry standard mid priced multipattern multipurpose condenser, also a surpriseingly good live
acoustic guitar mic, often used on TV soundstages.
SM81- good overhead, good on guitar, also an industry standard for live soundstages
SM-82- a line level broadcast mic with a bit of a cult following. One of the best acoustic mics I've ever used.
PG series-Radio Shack by any other name-Richie